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8.3. Organic chemistry purification and characterization — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry8.3. Organic chemistry purification and characterization1 Mark
MCQ
An organic compound containing carbon hydrogen and oxygen contains $52.20\%$ carbon and $13.04\%$ hydrogen. Vapour density of the compound is $23$. Its molecular formula will be
  • ✓
    ${C_2}{H_6}O$
  • B
    ${C_3}{H_8}O$
  • C
    ${C_4}{H_8}O$
  • D
    ${C_5}{H_{10}}O$
✓

Answer

Correct option: A.
${C_2}{H_6}O$
a
(a)Molecular weight = V.D. $\times 2 = 23 \times 2 = 46$

Molecular weight of ${C_2}{H_6}O = 46$

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