Foundation
Chemistry Foundation
Balancing of Redox Reactions
Question

In the chemical reaction - K2Cr2O7 + xH2SO4 + ySO2 → K2SO4 + Cr2(SO4)3 + zH2O the values of x, y and z respectively are -

x = 2, y = 2, z = 2

 x = 3, y = 2, z = 1    

x = 4 , y = 1, z = 4 

x = 1, y = 3, z = 1 

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Solution

K2Cr2O7 + H2SO4 + 3SO2  K2SO4 + Cr2(SO4)3 + H2O
so, the values of x, y, z are 1,3, 1 respect.

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