NEETChemistry-Solutions

NEET Chemistry Raoult's Law MCQ Question

Type: MCQ-conceptual-Medium-Class 12

What are the conditions for an ideal solution which obeys Raoult's law over the entire range of concentration?

A

ΔmixH = 0, ΔmixV = 0, Ptotal = P°A xA + P°B xB

B

ΔmixH = +ve, ΔmixV = 0, Ptotal = P°A xA + P°B xB

C

ΔmixH = 0, ΔmixV = +ve, Ptotal = P°A xA + P°B xB

D

ΔmixH = 0, ΔmixV = 0, Ptotal = P°B xB

Correct Answer

Option A

Detailed Explanation

For an ideal solution, the enthalpy and volume changes on mixing are zero, and the total vapor pressure is given by Raoult's law.

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