JEE Main 2025 Chemistry question
The elemental composition of a compound is 54.2%, C, 9.2% H and 36.6% O. If the molar mass of the compound is 132 g mol, the molecular formula of the compound is : [Given : The relative atomic mass of C : H : O = 12 : 1 : 16]
Answer: (3)
Solution
Empirical formula = C2H4O (mass 44); molar mass 132 = 3×44, so molecular formula = C6H12O3.