Question

Which one is the general formula of monohydric alcohols?

• A. ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}}\mathrm{OH}$
• B. ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}-2}\mathrm{OH}$
• C. ${\mathrm{C}}_{\mathrm{n}+1}{\mathrm{H}}_{2\mathrm{n}}\mathrm{OH}$
• D. ${\mathrm{C}}_{2\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}\mathrm{OH}$

Answer 1

The correct option is A

${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}}\mathrm{OH}$

Explanation for correct option

(A) ${\mathbf{C}}_{\mathbf{n}}{\mathbf{H}}_{\mathbf{2}\mathbf{n}}\mathbf{OH}$

Alcohols

• A type of organic molecule with at least one hydroxyl $\left(-\mathrm{OH}\right)$ functional group attached to a saturated carbon atom is called an alcohol.
• Primary, secondary, and tertiary alcohols are the three types of alcohol.
• Examples: Etanol, Butanol, and Pentanol.

${\mathbf{C}}_{\mathbf{n}}{\mathbf{H}}_{\mathbf{2}\mathbf{n}}\mathbf{OH}$

• Monohydric alcohol is an alcohol with only one hydroxyl group.
• The general formula of monohydric alcohol is ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}}\mathrm{OH}$.
• Monohydric alcohols include methanol, ethanol, and isopropanol.

Explanation for incorrect options

• The general formula of monohydric alcohol is ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}}\mathrm{OH}$.
• Hence, all the other options (B), (C) and (D) are incorrect.

Therefore, the correct option is (A) ${\mathbf{C}}_{\mathbf{n}}{\mathbf{H}}_{\mathbf{2}\mathbf{n}}\mathbf{OH}$.