Q.3 The elevation of boiling point and depression of freezing point of a certain solution of a monobasic acid HA in benzene are AT, and AT, respectively. HA exists usually as a monomer, but it dissociates into ions (with degree of dissociation a) at the boiling point T, of the solution, whereas at the freezing point T of the solution, HA exists as (HA)n with a fixed value of n. The molal boiling point elevation constant and molal freezing point depression constant are K, and Kf, respectively. The correct expression for n is X 1. Ans n = [AT, K; (1+a)] / (AT; K, ) X 2. = [AT, K, (1+a)] / (AT; K; ) 3. (AT, K; ) / [AT, K, (1+a)] X4. (AT, K, ) / [AT, K; (1+a)]

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Q.3 The elevation of boiling point and depression of freezing point of a certain solution of
a monobasic acid HA in benzene are AT, and AT, respectively. HA exists usually as
a monomer, but it dissociates into ions (with degree of dissociation a) at the boiling
point T, of the solution, whereas at the freezing point T, of the solution, HA exists
as (HA)n with a fixed value of n. The molal boiling point elevation constant and
molal freezing point depression constant are K, and Kf, respectively. The correct
expression for n is
Ans X 1.
n = [AT; K; (1+a)] / (AT, K, )
2.
n = [AT, K, (1+a)] / (AT; K; )
3.
n = (AT, K; ) / [AT, K, (1+a))
X 4.
n = (AT, K, )/ [AT; K, (1+a)]
%3D
Transcribed Image Text:Q.3 The elevation of boiling point and depression of freezing point of a certain solution of a monobasic acid HA in benzene are AT, and AT, respectively. HA exists usually as a monomer, but it dissociates into ions (with degree of dissociation a) at the boiling point T, of the solution, whereas at the freezing point T, of the solution, HA exists as (HA)n with a fixed value of n. The molal boiling point elevation constant and molal freezing point depression constant are K, and Kf, respectively. The correct expression for n is Ans X 1. n = [AT; K; (1+a)] / (AT, K, ) 2. n = [AT, K, (1+a)] / (AT; K; ) 3. n = (AT, K; ) / [AT, K, (1+a)) X 4. n = (AT, K, )/ [AT; K, (1+a)] %3D
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