1.

How much charge is required, when 1 mole of Cr_(2)O_(7)^(2-) reduceto form I mole of Cr ^(3+) ?

Answer»

6F
3F
1F
2F

Solution :Total of 6 electrons are REQUIRED to form 2 moles of `CR ^(3+)` therefore to form 1 mole of `Cr^(3+)3F` of CHARGE is required.


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