First slide

Equivalent weights

Question

‘V’ litres of 1 M KMnO₄ can completely oxidise 1 litre of 4 M potassium iodide in acidic medium. The value of ‘V’ is

Moderate

A

3.2
B

2.4
C

1.6
D

0.8

Solution

V₁N₁(KMnO₄)=V₂N₂(KI) ;
V₁(n₁)M₁=V₂(n₂)M₂ ;
V(5)1=1(1)4 ;
V= 0.8 litres ;

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