Q80 / 270 · NDA 2018 (Phase 2) · General Ability

Which one of the following is a tribasic acid?

A
Hydrochloric acid
B
Nitric acid
C
Sulphuric acid
Correct answer
D
Phosphoric acid

Solution

A tribasic acid has three replaceable hydrogen atoms to donate to a base during an acid-base reaction. Phosphoric acid is a tribasic acid.

Hence, the correct answer is option: 'D'.

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