Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Chemical Sciences Chemical Kinetics Unimolecular Reactions
In the mechanism of reaction, H2 + Br2 → 2HBr , the first step is
1
dissociation of Br2 into Br• radicals
2
dissociation of H2 into H• radicals
3
reaction of H• radical with Br2
4
reaction of Br• radical with H2
5
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