See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Sol. The elevation in boiling point is Tb = Kb m : m = molality 2 1 n 1000 w  2 = 0.76 2 n 1000 100   2 5 n 19  Also, from Raoult’s law of lowering of vapour pressure 2 2 2 o 1 2 1 n n p x n n n p      5 18 p 760 36mm of Hg 19 100 p 760 36 724 mm of Hg         