JEE Main 2022 Chemistry question

250 g solution of D-glucose in water contains 10.8% of carbon by weight. The molality of the solution is nearest to (Given: Atomic Weights are, H, 1 u; C, 12 u; O, 16 u)

(1)1.03
(2)2.06Correct
(3)3.09
(4)5.40

Answer: (2)

Solution

The mass of carbon in the solution is g. Glucose (, M = 180) contains 72/180 = 40% carbon by mass, so the

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Question ID VK-034386