Supply the reagents in the following sequence of reations :
`(iv) CH_(3) -CH =CH_(2) overset([A])(to) CH_(3) CH_(2) CH_(2)Br overset([B])(to) C_(6)H_(5)CH_(2) CH_(2) CH_(3)`

Explanation

To solve the given sequence of reactions, we will identify the reagents needed at each step to transform the starting material into the final product.

### Step-by-Step Solution:

1. **Starting Material:** The starting compound is CH₃-CH=CH₂ (propene).

2. **Step A:** We need to convert propene (CH₃-CH=CH₂) to CH₃-CH₂-CH₂Br (1-bromopropane).
- **Reagent:** To achieve this, we will use HBr in the presence of H₂O₂ (hydrogen peroxide).
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