Assertion (A) : Increasing order of acidity of hydrogen halides is HF lt HCl lt HBr lt HI Reason (R) : While comparing acids formed by the elements belonging to the same group of periodic table, H - A bond strength is a more important factor in determining acidity of an acid than the polar nature of the bond.

Assertion (A) : Increasing order of acidity of hydrogen halides is HF

1.	Assertion (A) : Increasing order of acidity of hydrogen halides is HF lt HCl lt HBr lt HI Reason (R) : While comparing acids formed by the elements belonging to the same group of periodic table, H - A bond strength is a more important factor in determining acidity of an acid than the polar nature of the bond.
Answer» Both Assertion and Reason are true and Reason is the correct explanation of Assertion. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. Assertion is true but Reason is false. Both Assertion and Reason are false. Solution :Both assertion and reason are correct and reason is the correct explanation of assertion. In the hydrogen halides, the HI is strongest acid while HF is the weak acid. It is because while COMPARING acids formed by the elements belonging to the same GROUP of periodic table, H-A bond strength is a more IMPORTANT factor in DETERMINING ACIDITY of an acid than the polar nature of the bond.