How many sigma and pi bonds are present in
(a) `CH_(3)-C-=N`
(b) `CH_(2)=C=O`

Explanation

To determine the number of sigma (σ) and pi (π) bonds in the given compounds, we will analyze each structure step by step.

### (a) For the compound `CH₃-C≡N`:

1. **Identify the structure**: The compound consists of a carbon atom (C) bonded to three hydrogen atoms (H) and a carbon atom (C) that is triple bonded to a nitrogen atom (N).

Structure:
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