Question

Find the odd one out based on dative bond.

• A. $\mathrm{KCl}$
• B. ${\mathrm{NH}}_4\mathrm{Cl}$
• C. ${\mathrm{CCl}}_4$
• D. $\mathrm{HCl}$ gas

Answer 1

The correct option is B

${\mathrm{NH}}_4\mathrm{Cl}$

Explanation of correct option:

(B) A dative bond is a type of covalent bond where the electrons are given by one atom only but are shared by two atoms.

• ${\mathrm{NH}}_4\mathrm{Cl}$ has a dative bond.
• ${\mathrm{NH}}_3$here forms a dative bond with ${\mathrm{H}}^{+}$ ion and then ionic bond is formed with ${\mathrm{Cl}}^{-}$.
• The dative bond can be understood from the structure given below

${\mathrm{H}}_3\mathrm{N}:\to {\mathrm{H}}^{+}$

Explanation of incorrect options:

(A) $\mathrm{KCl}$

$\mathrm{KCl}$ is an ionic compound where ${\mathrm{K}}^{+}$ and ${\mathrm{Cl}}^{-}$ forms the ionic bond.

(C) ${\mathrm{CCl}}_4$

${\mathrm{CCl}}_4$ is a covalent compound.

(D) $\mathrm{HCl}$ gas

$\mathrm{HCl}$ gas is a covalent compound.

Hence, the correct option is (B).