Class 9 Science Chapter 2 Is Matter Around Us Pure Quiz 16 (13 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Which of the following is not a clue that a chemical change is taking place?

Correct Answer: B) Phase change.

2. Impure salts can be purified by the process

Correct Answer: D) Crysrallization.

3. True or False:Gallium and Cesium do not become liquid slightly above room temperature.

Correct Answer: B) False.

4. In tincture of iodine, iodine is added as solute to which solvent?

Correct Answer: C) Alcohol.

5. How many moles are contained in 180 grams of water?

Correct Answer: B) 10.

6. What is the characteristic of a pure substance?

Correct Answer: D) It is made up of a single element.

7. THE CONCENTRATION OF A SOLUTION DEPENDS ON .....

Correct Answer: A) AMOUNT OF SOLUTE.

8. Assertion (A):Wood is not considered as a compound whereas Water is. Reason (R):Water is contains more than two types of elements.

Correct Answer: B) Both a and R are true but R is not the correct explanation of the A.

9. Magnalium is an alloy of

Correct Answer: B) Magnesium and Aluminium.

10. The quantity of matter present in an object is called

Correct Answer: C) Mass.

11. Milk is a

Correct Answer: C) Colloid.

12. Suspension is ..... mixture

Correct Answer: D) Heterogenous.

13. Man Sharda salute divided by mass of a solution multiply by 100 then we get

Correct Answer: C) Mass percentage of solution.