Some Basic Concepts Of Chemistry Question 198
Question: The equivalent weight of $ MnSO _4 $ is half its molecular weight when it is converted to [IIT 1988; CPMT 1994]
Options:
A) $ Mn _2O _3 $
B) $ MnO _2 $
C) $ MnO _4 $
D) $ MnO_4^{2-} $
Show Answer
Answer:
Correct Answer: B
Solution:
$ \overset{+2}{\mathop{Mn}},SO _4\to \overset{+4}{\mathop{Mn}},O _2 $
Change of valency $ =4-2=2 $
$ \therefore $ Equivalent weight $ =\frac{M}{2} $ .
