What is the shape of following compounds ?
(a) `H_(2)C = O`, (b) `CH_(3)F`, (c) `HC -= N`

Explanation

To determine the shape of the given compounds, we need to analyze the hybridization of the central atom in each molecule. The hybridization will help us understand the molecular geometry.

### Step-by-Step Solution:

**(a) For `H₂C=O` (Formaldehyde):**
1. Identify the central atom: The central atom is Carbon (C).
2. Count the sigma bonds:
- Carbon forms one double bond with Oxygen (O). A double bond consists of one sigma bond and one pi bond.
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