JEE Main 2026 Jan 24 Shift 1, Chemistry Q18: Properties of Phenol

JEE Main2026Jan 24, Shift 1Chemistry

Consider the following two reactions A and B.

Numerical value of [molar mass of x + molar mass of y] is _____ .

Solution

Reaction A: Phenol's $- O H$ is acidic enough to react with sodium metal, releasing hydrogen gas. Gas $x = H_{2}$ , molar mass $= 2$ .

Reaction B: Benzoic acid is stronger than carbonic acid, so it liberates $C O_{2}$ from $N a H C O_{3}$ . Gas $y = C O_{2}$ , molar mass $= 44$ .

Sum $= 2 + 44 = 46$ .

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