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.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. Both A and R are false.
