First slide
Equivalent weights
Question

‘V’ litres of 2.5 M KMnO4 can completely oxidise 2 litres of 2.5 M potassium iodide in acidic medium. The value of ‘V’ is

Moderate
Solution

V1N1(KMnO4)=V2N2(KI) ;

V1(n1)M1=V2(n2)M2 ;

V(5)2.5=2(1)2.5 ; 

V= 0.4 litres ;

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