Q.

Consider the following statements.
(A) At critical temperature, surface tension of a liquid becomes zero.
(B) At critical temperature, intermolecular forces for liquids and gases become equal. Also liquid can expand without any restriction

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.

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a

Both (A) and (B) are true.

b

Both (A) and (B) are false.

c

(A) is true but (B) is false.

d

(A) is false but (B) is true.

answer is A.

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Detailed Solution

AT boiling point of liquid surface tension becomes zero.

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Consider the following statements.(A) At critical temperature, surface tension of a liquid becomes zero.(B) At critical temperature, intermolecular forces for liquids and gases become equal. Also liquid can expand without any restrictionSelect 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.