MCQ
The electrophile involved in the above reaction is


- ✓dichlorocarbene $(: CCl_2)$
- Btrichloromethyl anion $(\mathop C\limits^\Theta Cl_3)$
- Cformyl cation $(\mathop C\limits^ \oplus HO)$
- Ddichloromethyl cation $(\mathop C\limits^ + HCl_2)$

In Reimer-Tiemann reaction, phenol in presence of $NaOH$ reacts with chloroform to give salicyladehyde.
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