Home Chemistry Solution & Colligative Properties Lowering of Vapour Pressure Relative decrease in vapour pressure of an a…
Chemistry Solution & Colligative Properties Lowering of Vapour Pressure Single Correct MCQ
Published on: August 12, 2026

Relative decrease in vapour pressure of an aqueous NaCl is 0.167. Number of moles of NaCl present in 180 g of H 2 O is :

A
2 mol
B
1 mol
C
3 mol
D
4 mol

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The correct answer is:
B

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