Which of the following is not the use of dihydrogen?

Options

A. it is used as a bleaching agent
B. it is used in preparation of ammonia
C. it is used in the preparation of methanol
D. it is used as a rocket fuel

Explanation

To solve the question "Which of the following is not the use of dihydrogen?", we will analyze each option provided:

1. **Option A: It is used as a bleaching agent.**
- Dihydrogen (H2) is not used as a bleaching agent. The common bleaching agent is hydrogen peroxide (H2O2), not dihydrogen. Therefore, this statement is incorrect regarding the use of dihydrogen.

2. **Option B: It is used in the preparation of ammonia.**
- Dihydrogen is indeed used in the preparation of ammonia. The reaction is represented as:
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