1.

The empirical formula of a compound is `CH_(2)O` and its molecular mass is 120. The molecular formula of the comound isA. `C_(2)H_(4)O_(2)`B. `C_(3)H_(6)O_(3)`C. `C_(4)H_(8)O_(4)`D. `CH_(2)O`

Answer» Correct Answer - C
Empirical formula weight of the compound
`12+2+16=30`
`n=("mol.wt.")/("Emp.formulawt.")=120/30=4`
`:.` molecular formula of the compound is `(CH_(2)O)_(4)=C_(4)H_(8)O_(4)`


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