The bond length in H2 molecule is 0.174 Å.

Explanation

To determine whether the bond length of the H2 molecule is 0.174 Å, we can follow these steps:

### Step 1: Understand the Concept of Bond Length
The bond length in a diatomic molecule like H2 is the distance between the nuclei of the two hydrogen atoms when they are bonded together.

### Step 2: Use the Covalent Radius
The covalent radius is defined as half the distance between the nuclei of two bonded atoms. For H2, the bond length can be calculated using the formula:
\[ \text{Bond Length} = 2 \times \text{Covalent Radius} \]
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