Question on: SS2 Chemistry - Electrochemistry
Which compound contains an element with a variable oxidation state?
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A
NaCl
B
H2O
C
KMnO4
D
VlC
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Correct Option: C
In potassium permanganate (KMnO4), manganese (Mn) exhibits a variable oxidation state. In this compound, manganese has an oxidation state of +7. The presence of oxygen (O) and the -2 charge on each oxygen atom necessitate the +7 oxidation state for manganese to balance the compound's charge.
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