In the conversation of k2 cr2o7to k2cr2o4 the oxidation number of the following changes
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Answer:
3
Explanation:
K2Cr2o7 = 2(1)+2x+7(-2) = 0 -> 2+2x-14 =0 -> x = 6
k2cr2o4 = 2(1)+2y+4(-2) = 0 -> 2+2y-8 = 0 -> y = 3
ox no. change= x-y = 6-3 = 3
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