Which of the following are components of an acid?

Hydrogen ion

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Metal ion

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Acid radical ion

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Hydroxyl ion

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Solution

The correct options are
A
Hydrogen ion

C
Acid radical ion

An acid has two parts : (1) the hydrogen ion and (2) the acid radical part.

An atom is said to be a radical when it contains at least one unpaired electron. When acids dissolve in water they split up into their hydrogen part and radical part.

For example, $H C l d i s s o l v e s i n H_{2} O - ------------ \to H^{+} + C l^{-}$ .
Here, $C l^{-}$ is the radical.

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