1.

An organic compound contains `C = 40%, H = 13.33%`, and `N = 46.67%`. Its empirical formula will beA. `CHN`B. `C_(3)H_(7)N`C. `C_(2)H_(2)N`D. `CH_(4)N`

Answer» Correct Answer - D
Considering `100 g` of the compound, we have
`m_(C ) = 40 g, m_(H) = 13.33 g`, and `m_(N) = 46.67 g`
Thus, the ratio of moles will be
`n_(C ):n_(H):n_(N) = (40)/(12) : (13.33)/(1) : (46.67)/(14)`
`= 3.33 : 13.33 : 3.33`
`= (3.33)/(3.33) : (13.33)/(3.33) : (3.33)/(3.33)`
`= 1 : 4 : 1`
Thus, the empirical formula is `CH_(4)N`.


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