MCQ
निम्न में कौन सा यौगिक ऑप्टिकली सक्रिय (Optically active) है?
- A$\left( CH _3\right) CH CHO$
- B$CH _3 CH _2 CH _2 CHO$
- ✓$CH _3 CH _2 CH ( Br ) CHO$
- D$CH _3 CH _2 C ( Br )_2 CHO$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.