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Question
Which of the following acid has the highest concentration of H+ ions?
Options:
A .  1M hydrochloric acid
B .  1M acetic acid
C .  1M Citric acid
D .  1M propanoic acid
Answer: Option A
:
A
Strong acids release H+ions more easily than weaker ones. Hydrochloric acid (HCl) is a strong acid, whereas, acetic acid (CH3COOH), citric acid (C6H8O7) and propanoic acid (CH3CH2COOH) areweak acids.
So, 1M hydrochloric acid will have a higher concentration of
H+ions than acetic acid and propanoic acid.

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