How many change in electron and electric charge in balance half reduction reaction for following redox reaction on left hand side ? Cr^(3+)+ClO_(3)^(-)toClO_(2)^(-)+Cr_(2)O_(7)^(2-)

How many change in electron and electric charge in balance half reduct

1.	How many change in electron and electric charge in balance half reduction reaction for following redox reaction on left hand side ? Cr^(3+)+ClO_(3)^(-)toClO_(2)^(-)+Cr_(2)O_(7)^(2-)
Answer» `6,-3` `6,-2` `6, 3` `6,-4` Solution :Reduction HALF reaction : `UNDERSET((+5))(ClO_(3)^(-))tounderset((+3))(ClO_(2)^(-))` `ClO_(3)^(-)+2e^(-)underset(2H^(+))toClO_(2)^(-)+H_(2)O` Number of `e^(-)=2xx3=6` CHARGES = 3 Balance above reaction multiply by 3 for completion.