How can you prepare Cl 2 from HCl and HCl from Cl 2 ? Write…

Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) General Subjective Type

Published on: August 12, 2026

How can you prepare Cl 2 from HCl and HCl from Cl 2 ? Write reactions only.

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Conc. HCl can be oxidized to Cl 2 by heating with a number of oxidizing agents such as MnO 2 , KMnO 4 , K 2 Cr 2 O 7 , etc.

MnO 2 + 4 HCl ⎯→ MnCl 2 + Cl 2 + 2 H 2 O

Cl 2 can reduced to HCl by its reaction with H 2 in presence of diffused sunlight.

H 2 + Cl 2 2 HCl

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