PDF chapter test TRY NOW

Methodical recommendation:

Textbook Questions

Number Name Type Difficulty Marks Description
1. Intext Questions I Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
2. Intext Questions II Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
3. Intext Questions III Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
4. Intext Questions IV Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
5. Intext Questions V Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
6. Intext Questions VI Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
7. Intext Questions VII Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
8. Exercises I Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to select the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
9. Exercises II Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
10. Exercises III Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
11. Exercises IV Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
12. Exercises V Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
13. Exercises VI Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
14. Exercises VII Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
15. Exercises VIII Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
16. Exercises IX Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
17. Exercises X Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
18. Exercises XI Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
19. Exercises XII Other easy 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the best answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
20. Exercises XIII Other easy 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write a short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
21. Exercises XIV Other easy 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write a short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
22. Exercises XV Other easy 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write a short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
23. Exercises XVI Other easy 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write a short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
24. Exercises XIX Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write a short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
25. Exercises XVII Other easy 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write a short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
26. Exercises XVIII Other easy 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write a short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
27. Exercises XX Other medium 3 m. This exercise consists of one textbook question; this question holds three marks. The student has to write a short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
28. NCERT Exemplar I Other medium 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
29. NCERT Exemplar II Other medium 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
30. NCERT Exemplar III Other medium 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
31. NCERT Exemplar IV Other medium 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
32. NCERT Exemplar V Other medium 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
33. NCERT Exemplar VI Other medium 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
34. NCERT Exemplar VII Other medium 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
35. NCERT Exemplar VIII Other medium 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
36. NCERT Exemplar IX Other medium 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
37. NCERT Exemplar X Other medium 2 m. This exercise consists of two textbook questions; each question holds one mark. The student has to choose the correct answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
38. NCERT Exemplar XI Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
39. NCERT Exemplar XII Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
40. NCERT Exemplar XIII Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
41. NCERT Exemplar XIV Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
42. NCERT Exemplar XV Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
43. NCERT Exemplar XVI Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
44. NCERT Exemplar XVII Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
45. NCERT Exemplar XVIII Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
46. NCERT Exemplar XIX Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
47. NCERT Exemplar XX Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
48. NCERT Exemplar XXI Other medium 3 m. This exercise consists of one textbook question; this question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
49. NCERT Exemplar XXII Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
50. NCERT Exemplar XXIII Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
51. NCERT Exemplar XXIV Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
52. NCERT Exemplar XXV Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
53. NCERT Exemplar XXVI Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
54. NCERT Exemplar XXVII Other medium 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
55. NCERT Exemplar XXVIII Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
56. NCERT Exemplar XXIX Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
57. NCERT Exemplar XXX Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
58. NCERT Exemplar XXXI Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
59. NCERT Exemplar XXXII Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
60. NCERT Exemplar XXXIII Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
61. NCERT Exemplar XXXIV Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
62. NCERT Exemplar XXXV Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
63. NCERT Exemplar XXXVI Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
64. NCERT Exemplar XXXIX Other hard 3 m. This exercise consists of one textbook questions; this question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
65. NCERT Exemplar XXXVII Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
66. NCERT Exemplar XXXVIII Other hard 6 m. This exercise consists of two textbook questions; each question holds three marks. The student has to write short answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
67. NCERT Exemplar XXXX Other hard 5 m. This exercise consists of one textbook question; this question holds five marks. The student has to write a long answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
68. NCERT Exemplar XXXXI Other hard 5 m. This exercise consists of one textbook question; this question holds five marks. The student has to write a long answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
69. NCERT Exemplar XXXXII Other hard 5 m. This exercise consists of one textbook question; this question holds five marks. The student has to write a long answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
70. NCERT Exemplar XXXXIII Other hard 5 m. This exercise consists of one textbook question; this question holds five marks. The student has to write a long answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
71. NCERT Exemplar XXXXIV Other hard 5 m. This exercise consists of one textbook question; this question holds five marks. The student has to write a long answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
72. NCERT Exemplar XXXXIX Other hard 5 m. This exercise consists of one textbook question; this question holds five marks. The student has to write a long answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
73. NCERT Exemplar XXXXV Other hard 5 m. This exercise consists of one textbook question; this question holds five marks. The student has to write a long answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
74. NCERT Exemplar XXXXVI Other hard 5 m. This exercise consists of one textbook question; this question holds five marks. The student has to write a long answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
75. NCERT Exemplar XXXXVII Other hard 5 m. This exercise consists of one textbook question; this question holds five marks. The student has to write a long answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
76. NCERT Exemplar XXXXVIII Other hard 5 m. This exercise consists of one textbook question; this question holds five marks. The student has to write a long answer, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
77. NCERT Lab Manual I Other medium 2 m. This exercise consists of two lab manual questions; each question holds one mark. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
78. NCERT Lab Manual II Other medium 2 m. This exercise consists of two lab manual questions; each questions holds one mark. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
79. NCERT Lab Manual III Other medium 3 m. This exercise consists of two lab manual questions; each questions holds three marks. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
80. NCERT Lab Manual IV Other medium 3 m. This exercise consists of two lab manual questions; each questions holds three marks. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
81. NCERT Lab Manual V Other medium 3 m. This exercise consists of two lab manual questions; each questions holds three marks. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
82. NCERT Lab Manual VI Other medium 3 m. This exercise consists of two lab manual questions; each questions holds three marks. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
83. NCERT Lab Manual IX Other medium 3 m. This exercise consists of one lab manual question; this questions holds three marks. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
84. NCERT Lab Manual VII Other medium 3 m. This exercise consists of two lab manual questions; each questions holds three marks. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
85. NCERT Lab Manual VIII Other medium 6 m. This exercise consists of two lab manual questions; each questions holds three marks. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
86. NCERT Lab Manual X Other medium 2 m. This exercise consists of two lab manual questions; each questions holds one mark. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
87. NCERT Lab Manual XI Other medium 2 m. This exercise consists of two lab manual questions; each questions holds one mark. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
88. NCERT Lab Manual XII Other medium 3 m. This exercise consists of two lab manual questions; these questions holds three marks. The student has to drag the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
89. NCERT Lab Manual XIII Other medium 3 m. This exercise consists of two lab manual questions; these questions holds three marks. The student has to drag the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
90. NCERT Lab Manual XIV Other medium 3 m. This exercise consists of two lab manual questions; these questions holds three marks. The student has to drag the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
91. NCERT Lab Manual XV Other medium 2 m. This exercise consists of two lab manual questions; these questions holds two marks. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.
92. NCERT Lab Manual XVI Other medium 2 m. This exercise consists of two lab manual questions; these questions holds two marks. The student has to choose the correct answers, and the questions deal with the importance of the chemical reaction and equations. As an outcome of this exercise, the student will learn about the mentioned concepts.

Periodic assessments

Number Name Recomended time: Difficulty Marks Description
1. Homework I 00:15:00 medium 10 m.
2. Homework II 00:15:00 medium 10 m.
3. Homework III 00:15:00 medium 10 m.
4. Homework IV 00:15:00 medium 7 m.
5. Homework V 00:15:00 medium 10 m.
6. Homework VI 00:15:00 medium 10 m.
7. Homework VII 00:15:00 medium 9 m.
8. Homework VIII 00:15:00 medium 13 m.
9. Homework IX 00:15:00 medium 13 m.
10. Homework X 00:15:00 medium 13 m.
11. Homework XI 00:15:00 medium 13 m.
12. Homework XII 00:15:00 medium 13 m.
13. Homework XIII 00:15:00 medium 13 m.
14. Homework XIV 00:15:00 medium 13 m.
15. Revision test I 00:20:00 medium 13 m.
16. Revision test II 00:20:00 medium 13 m.
17. Revision test III 00:20:00 medium 10 m.
18. Revision test IV 00:20:00 medium 7 m.
19. Revision test V 00:20:00 medium 11 m.
20. Revision test VI 00:20:00 medium 15 m.
21. Revision test VII 00:20:00 medium 15 m.
22. Revision test VIII 00:20:00 medium 15 m.
23. Revision test IX 00:20:00 medium 15 m.
24. Revision test X 00:20:00 medium 15 m.
25. Revision test XI 00:20:00 medium 18 m.
26. Revision test XII 00:20:00 medium 14 m.
27. Revision test XIII 00:20:00 medium 11 m.
28. Revision test XIV 00:20:00 medium 11 m.
29. Revision test XV 00:20:00 medium 13 m.
30. Revision test XVI 00:20:00 medium 13 m.