Correct Answer: Option A

Explanation

Chlorine gas is prepared in the laboratory by adding an oxidizing agent e.g. \(MnO_2\), \(PbO_2\), or \(KMnO_4\) on concentrated hydrochloric acid.

\(MnO_{2(s)}\) + 4\(HCl_{aq}\)  → \(MnO_{2(aq)}\) + 2\(H_2O_{(l)}\) + \(Cl_{2(g)}\)

There is an explanation video available below.

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