Pumpa Practice Questions. Science CBSE, Class 9 New: lessons, tests, tasks.

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1.	Pure and impure substance Difficulty: easy	2
2.	Classification of mixture Difficulty: medium	4
3.	Homogeneous and heterogeneous mixture Difficulty: medium	5
4.	Solution and its types Difficulty: medium	4
5.	Properties of solution Difficulty: easy	1
6.	Colloid and suspension Difficulty: hard	5
7.	Types of colloidal solutions Difficulty: easy	4
8.	Identifying solutions, colloids, and suspensions Difficulty: medium	3
9.	Dilute and concentrated solution Difficulty: easy	4
10.	Volume of the solution Difficulty: hard	4
11.	Saturated and unsaturated solution Difficulty: easy	1
12.	Effect of temperature on solubility Difficulty: medium	3
13.	Solubility curve Difficulty: easy	1
14.	Solubility of different salts at various temperatures Difficulty: hard	2
15.	Factors affecting solubility Difficulty: easy	1
16.	Introduction to seperation techniques Difficulty: easy	1
17.	Identify the separation technique Difficulty: medium	2
18.	Separation of alcohol and water by distillation Difficulty: medium	4
19.	Preparation of copper sulphate crystals by crystallisation Difficulty: medium	3
20.	Seperation techniques Difficulty: easy	1
21.	Common mixtures and their methods of separation Difficulty: easy	2
22.	Safety & societal aspects in separation techniques Difficulty: easy	2
23.	Sublimation Difficulty: easy	2
24.	Separation of mixtures using sublimation Difficulty: medium	3
25.	Centrifugation Difficulty: easy	1
26.	Coagulation Difficulty: easy	1
27.	Applications and safety measures of separation techniques Difficulty: medium	2
28.	Seperation techniques Difficulty: easy	1
29.	Common mixtures and their methods of separation Difficulty: medium	2

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