Write the compounds formula and IUPAC names of the following compounds known by their common names :
(i) Neopentane (ii) Vinyl chloride
(iii) Glycerol (iv) Tert-amyl alcohol.

Explanation

To solve the question, we will identify the chemical formula and IUPAC names for the given common names of the compounds: Neopentane, Vinyl chloride, Glycerol, and Tert-amyl alcohol.

### Step 1: Neopentane
1. **Identify the structure**: Neopentane has a branched structure with five carbon atoms.
2. **Chemical formula**: The formula for neopentane is \( C_5H_{12} \).
3. **IUPAC name**: The longest carbon chain has 3 carbons with two methyl groups as substituents. Therefore, the IUPAC name is **2,2-dimethylpropane**.

### Step 2: Vinyl Chloride
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