The depression in freezing point of 0.1 M aqueous solutions of HCl, CuSO_4 and K_2 SO_4 are in the ratio

Correct answer: A. 1: 1: 1.5 Δ T_f=i K_f m Thus, Δ T_f i (as concentration is same for all solutions) i for HCl=2, i for CuSO_4=2, i for K_2 SO_4=3 Thus, ratio of depression in freezing point =2: 2: 3=1: 1: 1.5

AIIMS 2017

Exam: AIIMS
Year: 2017
Subject: Chemistry
Chapter: Solutions

AIIMS 2017 · Chemistry · Solutions

The depression in freezing point of 0.1 M aqueous solutions of HCl,...

The depression in freezing point of

0.1 \mathrm{M}

aqueous solutions of

\mathrm{HCl}, \mathrm{CuSO}_4

and

\mathrm{K}_2 \mathrm{SO}_4

are in the ratio

Options

A $1: 1: 1.5$
B $1: 2: 3$
C $1: 1: 1$
D $2: 4: 3$

Correct answer

A. $1: 1: 1.5$

Step-by-step solution

\Delta T_f=i K_f m

Thus,

\Delta T_f \propto i

(as concentration is same for all solutions)

i

for

\mathrm{HCl}=2, i

for

\mathrm{CuSO}_4=2, i

for

\mathrm{K}_2 \mathrm{SO}_4=3

Thus, ratio of depression in freezing point

=2: 2: 3=1: 1: 1.5

Practice Solutions on Quantrex Academy →

More from Solutions