Complete the following reactions and write main products : (x) `C_(6)H_(5)CHO+NH_(2)-NH_(2)to`

Explanation

To complete the reaction of benzaldehyde (C₆H₅CHO) with hydrazine (NH₂-NH₂), we will follow these steps:

### Step 1: Identify the Reactants
The reactants in this reaction are benzaldehyde (C₆H₅CHO) and hydrazine (NH₂-NH₂). Benzaldehyde contains a carbonyl group (C=O), which is reactive towards nucleophiles.

### Step 2: Nucleophilic Attack
Hydrazine acts as a nucleophile due to the presence of a lone pair of electrons on the nitrogen atom. The nitrogen atom attacks the carbon atom of the carbonyl group in benzaldehyde. This leads to the formation of a tetrahedral intermediate.

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