1.

Which indicates the common laboratory method for the preparation of chlorine:

Answer»

`4HCl + O_2 rarr 2H_2O + 2Cl_2`
`2NaCl + 2H_2O rarr 2NAOH + H_2 + Cl_2`
`MnO_2 + 4HCl rarr MnCl_2 + Cl + 2H_2O`
`2Mg_2OCl_2 + O_2 rarr 4MgO + 2Cl_2`

Answer :C


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