JEE Main 2019 Chemistry question

Chemistry Solutions JEE Main 2019

What would be the molality of 20% (mass/mass) aqueous solution of KI? (molar mass of KI = 166 g mol)

(A)1.51Correct
(B)1.35
(C)1.08
(D)1.48

Answer: (A)

Solution

(20/166) mol in 0.080 kg water = 1.51 m.

Question ID VK-009791