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AIIMS 2015

Exam: AIIMS
Year: 2015
Subject: Chemistry
Chapter: Solutions

AIIMS 2015 · Chemistry · Solutions

The relationship between osmotic pressure at 273 ~K when 10 ~g...

The relationship between osmotic pressure at

273 \mathrm{~K}

when

10 \mathrm{~g}

glucose \left(P_1\right), 10 \mathrm{~g}

urea \left(P_2\right)

and 10 \mathrm{~g}

sucrose \left(P_3\right)

are dissolved in

250 \mathrm{~mL}

of water is

Options

A $P_1>P_2>P_3$
B $P_3>P_1>P_2$
C $P_2>P_1>P_3$
D $P_2>P_3>P_1$

Correct answer

C. $P_2>P_1>P_3$

Step-by-step solution

P=\frac{w}{M V} R T

; since

w, V

and

T

are same, thus

P \propto(1 / M)

.

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