MCQ
The $H - C - H$ bond angle in $C{H_4}$ is
- ✓${109^o}28'$
- B${107^o}28'$
- C${90^o}$
- D${180^o}$
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${ }^{-} \mathrm{OH}, \mathrm{R} \overline{\mathrm{O}}, \mathrm{CH}_3 \mathrm{CO} \overline{\mathrm{O}}, \mathrm{C} \overline{1}$