The number of alkanes in the following compounds is
`C_(3)H_(8),C_(3)H_(6),C_(4)H_(8),C_(4)H_(6)andC_(5)H_(12)`.

Explanation

To determine the number of alkanes in the given compounds, we need to identify which of the compounds fit the general formula for alkanes, which is \( C_nH_{2n+2} \).

### Step-by-Step Solution:

1. **Identify the General Formula for Alkanes**:
The general formula for alkanes is \( C_nH_{2n+2} \). Here, \( n \) represents the number of carbon atoms.

2. **List the Given Compounds**:
...