MCQ
How many cyclic structures are possible for $C_4H_6$ ?
- A$3$
- ✓$5$
- C$6$
- D$4$

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Compound $X$ and $Y$ are respectively.
$(A)$ $E, F$ and $\mathrm{G}$ are resonance structures
$(B)$ $E, F$ and $E, G$ are tautomers
$(C)$ $\mathrm{F}$ and $\mathrm{G}$ are geometrical isomers
$(D)$ $\mathrm{F}$ and $\mathrm{G}$ are diasteromers
Total number of optically active isomers shown by $\mathrm{C}_4 \mathrm{H}_8 \mathrm{Cl}_2$, obtained in the above reaction is......................