In a diatomic molecule,the internuclear axis is $Z$. Which of the following bonds will be formed by the overlap of $P_x$ and $P_y$ orbitals?

Which of the following combinations does not form a $\sigma$ bond?
$(i) \ 2p_y - 2p_y$
$(ii) \ 2p_z - 2p_z$
$(iii) \ 2s - 2p_x$
$(iv) \ 2p_x - 2p_x$

Assuming the bond direction is along the $z$-axis,which of the following overlaps of atomic orbitals of two atoms $(A)$ and $(B)$ will result in bonding?
$I$. $s$-orbital of $A$ and $p_x$-orbital of $B$
$II$. $s$-orbital of $A$ and $p_z$-orbital of $B$
$III$. $p_y$-orbital of $A$ and $p_z$-orbital of $B$
$IV$. $s$-orbital of both $(A)$ and $(B)$

The angle between $p$-orbitals is ......

Which overlap results in the formation of the strongest bond?

State the resemblance and difference between $\sigma$ ($\sigma$) and $\pi$ ($\pi$) bonds.