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$\mathrm{C}_{14} \mathrm{H}_{20} \mathrm{O}_{10}$
- ✓$\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}$