Which among the following hydrogen halides is thermally least stable?

Which among the following hydrogen halides is thermally least stable?
  1. $\mathrm{HBr}$
  2. $\mathrm{HI}$
  3. $\mathrm{HCl}$
  4. HF

Solution

In HI bond strength is least.

Asked in: MHT CET 2022 (07 Aug Shift 1)

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