1.

Assertion (A) : Relative lowering of vapour pressure is equal to the mole fraction of the solute.Reason (R) : The unit of K_f(Cryoscopic constant) is K kg "mol"^(-1)

Answer»

Both ASSERTION (A) and REASON (R) are correct STATEMENTS, and Reason (R) is the correct explanationof the Assertion (A).
Both Assertion (A) and Reason (R) are correct statements, but Reason (R) is not the correct explanationof the Assertion (A).
Assertion (A) is correct, but Reason (R) is INCORRECT statement,
Assertion (A) is incorrect, but Reason (R) is correct statement.

Answer :B


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