A) \[SO_{4}^{2-}\]
B) \[{{S}^{2-}}\]
C) \[NO_{3}^{-}\]
D) \[C{{H}_{3}}CO{{O}^{-}}\]
Correct Answer: B
Solution :
\[2KMn{{O}_{4}}+3{{H}_{2}}S{{O}_{4}}+5{{H}_{2}}S\to {{K}_{2}}S{{O}_{4}}+2MnS{{O}_{4}}\]\[+8{{H}_{2}}O+5S\]
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