`C_(6)H_(5)OH+CHCl_(3)+NaOH rarr` salicyladehyde The electrophile involved in the above reaction is.

C_(6)H_(5)OH+CHCl_(3)+NaOH rarr salicylaldehyde The electrophile involved in the above reaction is.

When phenol is treated with CHCl_(3) and NaOH, followed by acidification salicylaldehyde is obtained. Which of the following species are involved in the above mentioned reaction as intermediate?

C_(2)H_(5)Br + NaOH rarr C_(2)H_(5)OH + NaBr , the above reaction is