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Discussion Response Post to: a direct inorganic challenge

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arun-rashi (1128)

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mechanism is as follows [a].primery process Cl2 gives 2Cl........chain initiating step[b].secondery process [1]Cl +H2 gives HCl + H [2] H +Cl2 gives HCl +Cl [3]Cl +Cl gives Cl2 these all are chain propagation and terminating step.mechanism is similer for HBr but in the present reaction the reaction of primery process of the secondery process immediately follows and exotermic and takes place easily and chain reaction go easily.in case of HBr secondery process is endothermic so little tendency to take place.

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