MCQ
$IUPAC$ name of


- A$2,6,6-$ Trimethylbicyclo$[1.1.3]$hept $-2 -$ ene
- B$2,2,6-$ Trimethylbicyclo$[3.1.1]$hept $-5 -$ ene
- ✓$2,6,6-$ Trimethylbicyclo$[3.1.1]$hept $-2 -$ ene
- D$2,7,7-$ Trimethylbicyclo$[3.1.1]$hept $-2 -$ ene


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$(A)$ $\mathrm{H}$ and $\mathrm{H}$
$(B)$ $\mathrm{H}$ and $\mathrm{C}_2 \mathrm{H}_5$
$(C)$ $\mathrm{C}_2 \mathrm{H}_5$ and $\mathrm{H}$
$(D)$ $\mathrm{CH}_3$ and $\mathrm{CH}_3$
