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The elevation in boiling point for 1 molal solution of non-volatile solute A is 3 K . The depression in freezing point for 2 molal solution of A in the same solvent is 6 K . The ratio of K b and K f i.e., K b / K f is 1 : X . The value of X is

Correct answer

0

Step-by-step solution

We know that ΔT b = iK b m 1 ΔT f = iK f m 2 And for non-volatile solute i = 1 . ΔT b ΔT f = K b × 1   K f × 2 ⇒ 3 6 = 1 2 = K b K f × 1 2 K b K f = 1 1 ⇒ X = 1

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