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Considering x-axis as molecular axis, which out of the following will form a sigma bond.

1. 1s and 2py 

2. 2px and 2py 

3. 2px and 2py 

4. 1s and 2pz

1 Answer

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Best answer

Along X-axis as molecular axis, only 2px and 2py can form a sigma bond

2px + 2py and 1s and 2p2 also cannot form σ bond.

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