2. Is Matter Around Us Pure?

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2. Is Matter Around Us Pure?

Assertion & Reason Quiz

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1. Assertion (A): A solution of sugar in a glass of water is homogeneous.

Reason (R): A solution having non-uniform composition is homogeneous.

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1 point

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

Assertion (A) Is false but Reason (R) is true.

Both Assertion (A) and Reason (R) are true but Reason (R) Is not the correct explanation of Assertion (A).

Assertion (A) is true but Reason (R) is false.

2. Assertion (A): True solution does not Exhibit Tyndall effect.

Reason (R): Particles of true solution are very small in size.

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1 point

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

Both Assertion (A) and Reason (R) are true but Reason (R) Is not the correct explanation of Assertion (A).

Assertion (A) Is false but Reason (R) is true.

Assertion (A) is true but Reason (R) is false.

3. Assertion (A): Solute particles can be separated from the solution by the process of ﬁltration.

Reason (R): A solution Is a homogeneous mixture.

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1 point

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

Assertion (A) Is false but Reason (R) is true.

Both Assertion (A) and Reason (R) are true but Reason (R) Is not the correct explanation of Assertion (A).

Assertion (A) is true but Reason (R) is false.

4. Assertion (A): On dissolving chalk powder in water a suspension is obtained.

Reason (R): The particles oi? a suspension can be seen by the naked eye.

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1 point

Both Assertion (A) and Reason (R) are true but Reason (R) Is not the correct explanation of Assertion (A).

Assertion (A) Is false but Reason (R) is true.

Assertion (A) is true but Reason (R) is false.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

5. Assertion (A): Tyndall effect can be observed” in the canopy of a dense forest.

Reason (R): When a beam of light passes through the canopy of a dense forest. it gets scattered by the tiny droplets of water that act as particles of colloid dispersed in air.

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1 point

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

Both Assertion (A) and Reason (R) are true but Reason (R) Is not the correct explanation of Assertion (A).

Assertion (A) Is false but Reason (R) is true.

Assertion (A) is true but Reason (R) is false.

6. Assertion (A): When a beam of light is passed through a colloidal solution placed in a dark place the path of the beam becomes visible.

Reason (R): Light gets scattered by the colloidal particles.

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1 point

Both Assertion (A) and Reason (R) are true but Reason (R) Is not the correct explanation of Assertion (A).

Assertion (A) Is false but Reason (R) is true.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

Assertion (A) is true but Reason (R) is false.

7. Assertion (A): Colloidal solUtions; are stable and the colloidal particles do not settle down.

Reason (R): Colloidal particles can be separated from a colloidal solution by centrifugation.

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1 point

Both Assertion (A) and Reason (R) are true but Reason (R) Is not the correct explanation of Assertion (A).

Assertion (A) is true but Reason (R) is false.

Assertion (A) Is false but Reason (R) is true.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

8. Assertion (A): if the dispersed phase is liquid and the dispersion medium is solid the colloid formed Is known as sol.

Reason (R): Mud is an example of a sat.

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1 point

Assertion (A) is true but Reason (R) is false.

Both Assertion (A) and Reason (R) are true but Reason (R) Is not the correct explanation of Assertion (A).

Assertion (A) Is false but Reason (R) is true.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

9. Assertion (A): Interconversion of states of matter is considered a physical change.

Reason (R): Interconversion of states of matter takes place without change in composition.

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1 point

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

Assertion (A) Is false but Reason (R) is true.

Both Assertion (A) and Reason (R) are true but Reason (R) Is not the correct explanation of Assertion (A).

Assertion (A) is true but Reason (R) is false.

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