Which is not a colligative property?

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Question

(A) Colligative properties are those properties of solutions that depend only on the number of solute particles relative to the total number of partic

Vedclass · Accepted Answer

Refractive index

Vedclass · Answer

(A) Colligative properties are those properties of solutions that depend only on the number of solute particles relative to the total number of particles present in the solution,and not on the nature of the solute particles. The four main colligative properties are: $1$. Relative lowering of vapour pressure $2$. Elevation of boiling point $3$. Depression of freezing point $4$. Osmotic pressure Refractive index is a physical property that depends on the nature of the material,not on the number of solute particles. Therefore,Refractive index is not a colligative property.

Column-$I$	Column-$II$
$A$. Beckmann method	$1$. Osmotic pressure
$B$. Ostwald-Walker method	$2$. Elevation in $B$.$P$.
$C$. Berkeley-Hartley method	$3$. Depression in $F$.$P$.
$D$. Landsberger method	$4$. Relative lowering of vapour pressure

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