Choose the correct answers for a given amount of hydrogen.

Options

A. Mole of `H_(2)` = mole of H
B. Eq. of `H_(2)` = eq. of H
C. Mole of `H_(2)` = eq. of `H_(2)`
D. Mole of H = eq. of H

Answer

To solve the question regarding the correct statements about a given amount of hydrogen, we will analyze the information step by step.

### Step 1: Understanding Moles and Equivalents
- **Mole of H2**: A mole is a unit in chemistry that represents a specific number of particles (Avogadro's number, \(6.022 \times 10^{23}\)). For diatomic hydrogen (H2), one mole of H2 contains two moles of hydrogen atoms (H).
- **Equivalent of H2**: The equivalent weight of a substance is the mass that combines with or displaces 1 mole of hydrogen or 8 grams of oxygen. Since H2 has two hydrogen atoms, its equivalent is half of its molar mass.

### Step 2: Analyzing the Statements
1. **Mole of H2 is equal to mole of hydrogen**: This statement is incorrect because one mole of H2 contains two moles of hydrogen atoms.

2. **Equivalent of H2 is equal to equivalent of hydrogen**: This statement is correct. The equivalent of H2 can be considered as one equivalent of hydrogen since it can replace one mole of hydrogen in reactions.

3. **Given amount of hydrogen is equal to 1 gram of hydrogen**: This statement is a bit misleading. The molar mass of hydrogen (H) is approximately 1 gram/mole, so 1 gram of hydrogen corresponds to 1 mole of hydrogen atoms.

4. **Mole of H2 is equal to equivalent of H2**: This statement is correct. One mole of H2 is equivalent to one equivalent of H2 in terms of its ability to react.

### Step 3: Conclusion
- From the analysis, we find that:
- **Statement 2** is correct: Equivalent of H2 is equal to equivalent of hydrogen.
- **Statement 4** is correct: Mole of H2 is equal to equivalent of H2.

Thus, the correct answers are statements 2 and 4.