Home
Class 12
CHEMISTRY
Assertion : The angle of contact of a li...

Assertion : The angle of contact of a lilquid with a solid decreases with increase in temperature.
Reason : With increase in temperature, the surface tension of the liquid increases.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
B
The correct reason is that molecules of liquid absorb heat energy thus their kinetic energy or motion increases.
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    ERRORLESS|Exercise PAST YEARS QUESTIONS|52 Videos

  • SOLID STATE

    ERRORLESS|Exercise ASSERTION & REASON|11 Videos

  • SURFACE CHEMISTRY

    ERRORLESS|Exercise ASSERTION AND REASON|14 Videos

Similar Questions

Explore conceptually related problems

In the following question, a statement of assertion is followed byb a statement of reason, mark the correct choice as (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c ) If assertion is true but reason is false. (d) If both assertion and reason are false. Q. Assertion: The angle of contact of a liquid with a solid increase with increase in temperature of liquid. Reason: With increase in temperature, the surface tension of the liquid increase.

Statement-1: The angle of contact of a liquid decrease with increase in temeperature Statement-2: With increase in temperature the surface tension of liquid increase.

If temperature increases, the surface tension of a liquid

Assertion: pH of water increases with increases in temperature . Reason : With increase in temperature, K_w of water increases.

With increase in temperature, the fluidity of liquids

When the temperature increases, the surface tension of water