Question

What type of bond exists between $HF$, ${NH}_3$, $C_2{H}_{5}OH$ molecules$?$

Answer 1

Type of bonds-

$HF\to$ Polar covaleny bond as the bonding $e^{-}$pair shifted more towards $F$ due to its high electronegativity.

${NH}_3\to$ Covalent bond, as both $N$ and $H$ are non-metal and does not have tendency to donate $e^{-}$ to each other, thus they share $e^{-}$ and form covalent bond.

$C_2{H}_{5}OH\to$ Two types of bonding.

$\left(a\right)$ bonding between $C-H$ is non- polar covalent bond as their electronegativity are almost similar.

$\left(b\right)$ bonding between $C-O$ and $O-H$ it is polar covalent bond due to the high electronegativity of $O$, polarity arises.