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Assertion : The strength of haloacids in...

Assertion : The strength of haloacids increases in the order : `HIltltHBrltltHClltltHF`
Reason : Strength of acid HA depends only on the electronegatively difference between H and A.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
D
The correct order of acidic strength is `HFltltHClltltHBrltltHI`. While comparing elements in the same group of the periodic table, H-A bond strength is a more important factor in determining acidity than its polar nature. As the size of A increases down the group, H-A bond strength decreases and so the acid strength increases.
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