Q13 / 160 · NTA Abhyas (NEET) 2020 · Chemistry · Solutions

The order of a colligative property for $0.1 M$ solution of the following is

A
$N a C l > N a_{2} S O_{4} > N a_{3} P O_{4}$
Correct answer
B
$N a C l < N a_{2} S O_{4} < N a_{3} P O_{4}$
C
$N a C l > N a_{2} S O_{4} \approx N a_{3} P O_{4}$
D
$N a C l < N a_{2} S O_{4} = N a_{3} P O_{4}$

Solution

Colligative property in decreasing order

N a_{3} P O_{4} > N a_{2} S O_{4} > N a C l

N a_{3} P O_{4} \to 3 N a^{+} + P O_{4}^{3 -} = 4

N a_{2} S O_{4} \to 2 N a^{+} + S O_{4}^{2 -} = 3

N a C l \to N a^{+} + C l^{-} = 2

Hence, the correct answer is option: 'B'.

More Solutions Questions

The osmotic pressure of 0.4% urea solution is 1.66 atm and that of a solution of sugar of 3.42% is 2.46 atm. When equal volumes of both the
An ideal mixture of two liquids A and B is put in a cylinder containing piston. Piston is pulled out isothermally so that the volume of liqu
At 37 ° C , the osmotic pressure of blood is 8.21 atm. The amount of glucose that should be used per litre for an intravenous injection so t
The molal lowering of vapour pressure for water at 100 o C , is
Which compound has the same value of Van't Hoff factor i as that of K 4 [ F e ( C N ) 6 ]
Two liquids X and Y form an ideal solution. At 300 K, vapour pressure of the solutions containing 1 mol of X and 3 mol of Y is 550 mmHg. At