Question

Acid strength increases in the order of _____________

(a) HF ≪ HCl ≪ HBr ≪ HI

(b) HF ≪ HBr ≪ HCl ≪ HI

(c) HI ≪ HCl ≪ HBr ≪ HF

(d) HCl ≪ HF ≪ HBr ≪ HI

This question was posed to me during an interview.

I'd like to ask this question from Equilibrium topic in section Equilibrium of Chemistry – Class 11

Answer 1

Correct answer is (a) HF ≪ HCl ≪ HBr ≪ HI

The best explanation: The correct order of increase in acidic strength is HF ≪ HCl ≪ HBr ≪ HI. There are many factors affecting acid strength. Hear the hydrogen-acid Bond strength decreases, as the acid strength increases.