A compound contains \( 38.8 \% \mathrm{C}, 16.0 \% \mathrm{H} \) and \( 45.2 \% \mathrm{~N} \). ...

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A compound contains \( 38.8 \% \mathrm{C}, 16.0 \% \mathrm{H} \) and \( 45.2 \% \mathrm{~N} \).
The formula of the compound would be
(a) \( \mathrm{CH}_{3} \mathrm{NH}_{2} \)
(b) \( \mathrm{CH}_{3} \mathrm{CN} \)
(c) \( \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{CN} \)
(d) \( \mathrm{CH}_{2}(\mathrm{NH})_{2} \)
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