First slide
Surface tension
Question

Consider the following statements.
(A) During summer surface tension of a liquid increases.
(B) Thermal velocity of molecules decreases in summer. 

Select the correct option.
(a) (A) is false, But (B) is true.
(b) Both (A) and (B) are true.
(c) (A) is true, But (B) is false.
(d) Both (A) and (B) are false.

Easy
Solution

 A  is false  because WITH increase in temperature surface tension of liquid will be decreased.

B is false because increase in temperature leads to evaporation means velocity increases.

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