Matter: Pure and impure substances. Science CBSE, Class 9: lessons, tests, tasks.

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டவுன்லோடு செய்யுங்கள்

1.	Introduction to pure substance and mixture
2.	Pure substances
3.	Mixtures
4.	Mixture and compound
5.	Solution and its types
6.	Solution: Properties and concentration
7.	Calculation: Concentration of the solution
8.	Suspension
9.	Colloidal Solutions

1.	Mixture and compound: fill in the blanks Difficulty: easy	2
2.	Answer the questions about compound and mixtures Difficulty: easy	2
3.	Calculate the mass percentage Difficulty: easy	4
4.	Find which of the following is not a mixture Difficulty: medium	2
5.	Pure and impure substances: word matching Difficulty: medium	2
6.	Types of solutions: Choose the correct answer Difficulty: medium	5
7.	'True' or 'false' about solutions Difficulty: medium	2
8.	Find the mass percentage Difficulty: medium	4
9.	Solve the riddle based on the topic matter Difficulty: hard	5
10.	Analysing the questions on purity of the matter Difficulty: hard	4
11.	Calculate the mass of the solution Difficulty: hard	4
12.	Situation based questions about atomicity of molecules Difficulty: hard	4

1.

Training Test

Difficulty: medium

8

1.

Methodical recommendation

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