NEET Chemistry The p-Block Elements (XII) Questions Solved

Which of the following HY(hydra-acid of halogen) is the strongest acid, best reducing agent, is the least stable and is easily oxidised

(A) HF

(B) HCl

(C) HBr

(D) HI

HI is strongest acid because of its least bond dissociation energy. The increasing order of acidic strength is HF<HCl<HBr<HI. The decreasing order of thermal stability is HF>HCl>HBr>HI.

Difficulty Level:

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