A) \[Mn{{O}_{2}},Mn{{O}_{2}},M{{n}^{2+}}\]
B) \[MnO_{4}^{2-},M{{n}^{3+}},M{{n}^{2+}}\]
C) \[Mn{{O}_{2}},MnO_{4}^{2-},M{{n}^{3+}}\]
D) \[MnO,Mn{{O}_{4}},M{{n}^{2+}}\]
Correct Answer: A
Solution :
\[Mn{{O}_{2}},\,\,Mn{{O}_{2}},\,\,M{{n}^{2+}}\] In neutral medium: \[2KMn{{O}_{4}}+3MnS{{O}_{4}}+2{{H}_{2}}O\,\to \]\[{{K}_{2}}S{{O}_{4}}+2{{H}_{2}}S{{O}_{4}}+5Mn{{O}_{2}}\] In alkaline medium: \[2KMn{{O}_{4}}+{{H}_{2}}O\,\to \,2Mn{{O}_{2}}+2KOH+3O\] In acidic medium: \[2KMn{{O}_{4}}+3{{H}_{2}}S{{O}_{4}}\,\to {{K}_{2}}S{{O}_{4}}+\overset{+2\,\,\,\,\,\,\,\,}{\mathop{2MnS{{O}_{4}}}}\,\]\[+5{{H}_{2}}O+5O\]
You need to login to perform this action.
You will be redirected in
3 sec
