MCQ
The electrophile involved in the below reaction is


- Atrichloromethyl anion $(\mathop C\limits^\circleddash Cl_3 )$
- Bformyl cation $(\mathop C\limits^ \oplus HO)$
- Cdichloromethyl cation $(\mathop C\limits^ \oplus HCl_2 )$
- ✓dichlorocarbene $(: \,CCl_2)$

