A) 31.60
B) 52.66
C) 79.00
D) 158.00
Correct Answer: D
Solution :
\[\overset{+7}{\mathop{KMn{{O}_{4}}}}\,\to \overset{+6}{\mathop{{{K}_{2}}Mn{{O}_{4}}}}\,\]\[\frac{\text{Molecular}\,\,\text{weight}}{1}=\frac{158}{1}=158\]
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