Tardigrade
Tardigrade - CET NEET JEE Exam App
Exams
Login
Signup
Tardigrade
Question
Chemistry
Which of the following statements is correct about equivalent weight of KMnO4?
Q. Which of the following statements is correct about equivalent weight of
K
M
n
O
4
?
2133
191
The d-and f-Block Elements
Report Error
A
It is one third of its molecular weight in alkaline medium
B
It is one fifth of its molecular weight in alkaline medium
C
It is equal to its molecular weight in acidic medium
D
It is one third of its molecular weight in acidic medium
Solution:
It is one-third of its molecular weight in alkaline medium because it gives 3 nascent oxygen in alkaline medium
2
K
M
n
O
4
+
H
2
O
+
3
e
−
2
K
O
H
+
2
M
n
O
2
+
3
[
O
]
∴
Equivalent weight
=
3
M