If the internuclear axis is z,then which of t | vedclass

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(D) $\sigma$ bond is formed by the head-on (axial) overlapping of atomic orbitals along the internuclear axis.Given the internuclear axis is $z$:$1$.

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All of these

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(D) $\sigma$ bond is formed by the head-on (axial) overlapping of atomic orbitals along the internuclear axis.Given the internuclear axis is $z$:$1$. $p_{z} \& d_{z^2}$ overlap head-on along the $z$-axis to form a $\sigma$ bond.$2$. $p_{z} \& p_{z}$ overlap head-on along the $z$-axis to form a $\sigma$ bond.$3$. $s \& p_{z}$ overlap head-on along the $z$-axis to form a $\sigma$ bond.Since all the given combinations result in head-on overlapping along the $z$-axis,all of them form a $\sigma$ bond.

If the internuclear axis is $z$,then which of the following overlapping gives a $\sigma$ bond?

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