Question

Which of the following compound contain a single covalent bond.

• A. Oxygen
• B. Nitrogen
• C. Methane
• D. Carbon dioxide

Answer 1

The correct option is C

Methane

A covalent bond is formed by the mutual sharing of one or more pairs of electrons between the two adjacent atoms that participate in bond formation.

Option (C)

A single covalent bond is formed by the sharing of two electrons of neighboring atoms.

Methane is a saturated hydrocarbon having the chemical formula is ${\mathrm{CH}}_4$.

All the four $\mathrm{C}-\mathrm{H}$ bonds in methane are singly covalently bonded.

Option (A)

Oxygen is a diatomic molecule that is covalently bonded by a double bond. The molecular formula of oxygen is ${\mathrm{O}}_2$. The structural formula of oxygen is $\mathrm{O}=\mathrm{O}$.

Option (B)

Nitrogen is a diatomic molecule that is covalently bonded by a triple bond. The structural formula of nitrogen is $\mathrm{N}\equiv \mathrm{N}$.

Option (D)

Carbon dioxide is a triatomic molecule. The structural formula of Carbon dioxide is $\mathrm{O}=\mathrm{C}=\mathrm{O}$

Hence, option (C) is the correct option.