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Auto Protolysis of Water

Which ions ar...

Question

Which ions are present in a dilute aqueous solution of hydrochloric acid?

H_{3} O^{+} + C l^{-}

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H_{3} O^{+} + O H^{-}

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C l^{-} + O H^{-}

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Unionised

H C l

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Solution

The correct option is A $H_{3} O^{+} + C l^{-}$
$H C l + H_{2} O \to H_{3} O^{+} + {C l}^{-}$
In the aqueous solution of $H C l$ hydronium ions are formed alongwith chloride ions.

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