A) forms water only
B) acts as an oxidising agent
C) reduces sulphuric acid
D) acts as a reducing agent
Correct Answer: D
Solution :
\[\overset{+7}{\mathop{2KMn{{O}_{4}}}}\,+3{{H}_{2}}S{{O}_{4}}+5{{H}_{2}}{{O}_{2}}\xrightarrow{{}}{{K}_{2}}S{{O}_{4}}\] \[+\overset{+2}{\mathop{2MnS{{O}_{4}}}}\,+8{{H}_{2}}O+5{{O}_{2}}\] Here,\[{{H}_{2}}{{O}_{2}}\]acts as a reducing agent and it reduces\[KMn{{O}_{4}}\]to\[M{{n}^{2+}}\]ion.
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