Question

In the conversation of k2 cr2o7to k2cr2o4 the oxidation number of the following changes

Answer 1

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