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Compreshension -I The experimental val...

Compreshension -I
The experimental values of colligative properties of many solutes in solution resembles calculated value of colligative properties.
However in same cases, the experimental value of colligative property differ widely than those obtained by calculation. Such experimental values of colligative properties are known as Abnormal values of colligative properties are :
(i) Dissociation of solute : It increases the colligative properties.
(ii) Association of solute : It decreases the colligative properties
e.g. : Dimerisation of acetic acid in benzene
If degree of dissociation of an electrolyte `A_(2)B_(3)` is 25% in a solvent, then

A

Poor polar solvent than water

B

Better polar solvent than `H_2O`

C

Both have equal polarity

D

Better polar solvent but
its strong auto oxidising
ability limits its use as such

Text Solution

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The correct Answer is:
D
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Compreshension -I The experimental values of colligative properties of many solutes in solution resembles calculated value of colligative properties. However in same cases, the experimental value of colligative property differ widely than those obtained by calculation. Such experimental values of colligative properties are known as Abnormal values of colligative properties are : (i) Dissociation of solute : It increases the colligative properties. (ii) Association of solute : It decreases the colligative properties e.g. : Dimerisation of acetic acid in benzene One mole I_(2) (solid) is added in 1 M, 1 litre Kl solution . Then

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