NEETChemistry-Solutions

NEET Chemistry Colligative Properties MCQ Question

Type: MCQ-numerical-Medium-Class 12

The elevation in boiling point of a solution of 9.43 g of MgCl₂ in 1 kg of water is (Kb = 0.52 K kg mol⁻¹, Molar mass of MgCl₂ = 94.3 g mol⁻¹)

A

0.156

B

0.52

C

0.17

D

0.94

Correct Answer

Option A

Detailed Explanation

Using the formula ΔTb = iKb m, where i is the van't Hoff factor for MgCl₂ (i=3), the elevation is calculated to be 0.156 K.

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