Hi Aspirant,

2 C ₆ H ₅ CHO + NaOH → C ₆ H ₅ COONa + C ₆ H ₅ CH ₂ OH

This is the original equation.Benzaldehyde on reaction with sodium hydroxide gives sodium benzoate with benzyl alcohol.This is the balanced reaction along with correct elements.It is one of the famous equation in organic chemistry and often comes in the exam.

Hope it helps!!