Assertion : The strength of haloacids increases in the order : `HIltltBHrltltHClltltHF` 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.

Assertion : The strength of haloacids increases in the order : `HIltlt

1.	Assertion : The strength of haloacids increases in the order : `HIltltBHrltltHClltltHF` 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.
Answer» Correct Answer - 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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