MCQ
Ail organic compound has $42.1 \%$ carbon, $6.4 \%$ hydrogen and remainder is oxygen. If its molecular weight is $342$ , then its molecular formula is:
  • A
    $\mathrm{C}_{11} \mathrm{H}_{18} \mathrm{O}_{12}$
  • B
    $\mathrm{C}_{12} \mathrm{H}_{20} \mathrm{O}_{12}$
  • C
    $\mathrm{C}_{14} \mathrm{H}_{20} \mathrm{O}_{10}$
  • $\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}$

Answer

Correct option: D.
$\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}$
d
only $\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}$ has $42.1 \%$ carbon, $6.4 \%$ hydrogen & $51.5$ percent oxygen.

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