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Question

In the reaction Cu3P+K2Cr2O7+H2SO4CuSO4+H3PO4+Cr2(SO4)3+H2O.
What is the n-factor of Cu3P?

A
8
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B
3
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C
11
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D
1
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Solution

The correct option is C 11
In Cu3P oxidation number of Cu is +1 and that of P is -3.
Both of them are getting oxidised (Cu from +1 to +2 and P from -3 to +5 )
So, n-factor = 3×1+8 = 11

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