MCQ
An organic compound has $C = 60\%$, $H = 13.3\%$ and $O = 26.7\%$. Its empirical formula will be
  • A
    ${C_3}{H_6}O$
  • B
    ${C_2}{H_6}{O_2}$
  • C
    ${C_4}{H_8}{O_2}$
  • ${C_3}{H_8}O$

Answer

Correct option: D.
${C_3}{H_8}O$
d
(d)

Elements     $\%$          No. of moles        Simple ratio

 $C$

 $60\%$

 $60/12 = 5 $

 $3.01$

$ H$

 $13.3\%$

 $13.3/1 = 13.3$

 $8.01$

 $O$

 $26.7\%$

 $26.7/16 = 1.66$

 $1$

Empirical formula =${{C}_{3}}{{H}_{8}}O$ . 

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