Question

Give an example of weak monobasic acid?

Answer 1

Weak monobasic acid:

• The weak acids which give only one hydrogen ion $\left({\mathrm{H}}^{+}\right)$ when dissolved in an aqueous solution are called weak monobasic acids.
• These acids have only one replaceable hydrogen atom per molecule/ acid.
• In an acid-base reaction, weak monobasic acids can donate only one hydrogen ion to the base or can accept one hydroxide ion$\left({\mathrm{OH}}^{-}\right)$ from the base in an aqueous solution.
• They have only one dissociation constant$\left({\mathrm{K}}_{\mathrm{a}}\right)$.
• Examples of weak monobasic acids are acetic acid$\left({\mathrm{CH}}_3\mathrm{COOH}\right)$, boric acid$\left({\mathrm{H}}_3{\mathrm{BO}}_3\right)$, etc.

Hence, an example of weak monobasic acid is acetic acid$\left({\mathrm{CH}}_3\mathrm{COOH}\right)$.