Ncert Exercises & Solutions

Match the laws/colligative properties given in Column-I with expressions given in Column-II.

	Column-I		Column-II
A.	Raoult’s law	I.	\(\mathrm{\pi=C R T}\)
B.	Osmotic pressure	II.	\(\Delta \mathrm{T}_{\mathrm{f}}=\mathrm{K}_{\mathrm{f}} \mathrm{~m}\)
C.	Elevation of boiling point	III.	\(\mathrm{p=x_1 p_1^0+x_2 p_2^0}\)
D.	Depression in freezing point	IV.	\(\Delta \mathrm{T}_{\mathrm{b}}=\mathrm{K}_{\mathrm{b}} \mathrm{~m}\)

Codes:

Hint: Osmotic pressure Mathematical representation,

π

= CRT

A. Raoult’s law Mathematical representation of Raoult’s law

p = x_{1} p_{1}^{0}

+ x_{2} p_{_{2}}^{0}

B . Osmotic pressure Mathematical representation,

π

= CRT

C. Elevation of boiling point Mathematical representation,

{ΔT}_{b} = K_{b} m

D. Depression in freezing point Mathematical representation,

{ΔT}_{f} = K_{f} m