Question

Match the item given in Column-I (method used for determining colligative property) andColumn-II (for the corresponding colligative property) and find the correct order.

Label		Carbocation
a	Beckmann method	i	Osmotic pressure
b	Ostwald-Walker method	ii	Elevation in B.P.
c	Berkeley-Hartley method	iii	Depression in F.P.
d	Landsberger method	iv	Relative lowering of Vapour pressure

• A. (a-ii),(b-iv),(c-iii),(d-i)
• B. (a-i),(b-iv),(c-ii),(d-iii)
• C. (a-ii),(b-iii),(c-iv),(d-i)
• D. (a-iii),(b-iv),(c-i),(d-ii)

Answer 1

Answer: (D)

The correct matching between Column I and Column II are
(A) Backmann method - Depression in freezing point
(B) Ostwald-Walker method - RLVP
(C) Barkeley-Hartley method-Osmotic pressure
(D) Landsberger method - Elevation in boiling point