JEE Main 2024 Chemistry question
A compound (x) with molar mass 108 g mol⁻¹ undergoes acetylation to give product with molar mass 192 g mol⁻¹. The number of amino groups in the compound (x) is .
Answer: 2
Solution
Each acetylation of an –NH₂ group replaces H by COCH₃, adding 42 g/mol. The number of amino groups = (192 − 108)/42 = 2.