Question

Which of the following is the strongest acid ?

• A. HBr
• B. HF
• C. H2S
• D. PH3

Answer 1

Answer: (A)

HBr

Answer 2

Order of acidic character is HI > HBr > HCl > HF as their acidic character depends on their bond dissociation energies which follows HF > HCl > HBr > HI.