A hydrocarbon has three carbon atoms. Write down its molecular formulae as
alkyne

Explanation

To determine the molecular formula of an alkyne with three carbon atoms, we can follow these steps:

### Step 1: Identify the General Formula for Alkynes
Alkynes are a type of hydrocarbon that contain at least one triple bond between carbon atoms. The general formula for alkynes is given by:
\[ C_nH_{2n-2} \]
where \( n \) is the number of carbon atoms.

### Step 2: Determine the Value of \( n \)
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