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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) are weak acids.
So, 1M hydrochloric acid will have a higher concentration of 
H+ ions than acetic acid and propanoic acid.



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