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Q. $KMnO_4$ is a strong oxidising agent in acidic medium. To provide acidic medium $H_2SO_4$ is usedinstead of $HCl$. This is because

Redox Reactions

Solution:

$HCl$ is oxidized by $KMnO_4$ to $Cl_2 \,2 KMnO_4 + 16 HCI \rightarrow 2KCI + 2MCI_2 + 8 H_2O + 5CI_2 $