Write a chemical reaction for carbylamine test.

Explanation

### Step-by-Step Solution for Carbylamine Test Reaction

1. **Identify the Reactants**: The carbylamine test is performed using a primary amine (RNH2), chloroform (CHCl3), and potassium hydroxide (KOH) in an alcoholic medium.

2. **Reaction Setup**: The primary amine is mixed with chloroform and potassium hydroxide. The reaction occurs under heating conditions.

3. **Formation of Carbene**: When chloroform (CHCl3) reacts with potassium hydroxide (KOH), it undergoes dehydrohalogenation, leading to the formation of a dichlorocarbene (CCl2), which is an electrophile.

...