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Considering x-axis as the internuclear a...

Considering x-axis as the internuclear axis which of the following form sigma bond:
(i) 1s and 1s (ii) 1s and `2p_x`
(iii) `2p_y and 2p_y` (iv) `2p_x and 2p_y`

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To determine which of the given pairs of atomic orbitals form sigma bonds when considering the x-axis as the internuclear axis, we will analyze each pair step by step. ### Step-by-Step Solution: 1. **Pair (i): 1s and 1s** - The 1s orbitals are spherical in shape. When two 1s orbitals approach each other, they can overlap directly along the internuclear axis (x-axis). - **Conclusion**: This overlap results in the formation of a sigma bond. ...
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