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Q.

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

 Assertion A: A mixture contains benzoic acid and napthalene. The pure benzoic acid can be separated out by the use of benzene.

 Reason R: Benzoic acid is soluble in hot water.

In the light of the above statements, choose the most appropriate answer from the options given
below.

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a

Both A and R are true and R is the correct explanation of A.

b

Both A and R are true but R is NOT the correct explanation of A.

c

is true but R is false.

d

A is false but R is true.

answer is D.

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Detailed Solution

Benzoic acid and Napthalene can be effectively separated by crystallization. Benzoic acid is
soluble in hot water whereas Napthalene is insoluble.

Hence assertion is incorrect but reason is correct

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