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Balance the following equations by ion e...

Balance the following equations by ion electron (half reaction ) method :
`{:((i) ,H_2S+MnO_4^(-)+H^(+),rarr,S+Mn^(2+)+H_2O),((ii) ,Cr_2O_7^(2-)+H^(+)+Fe^(2+),rarr,Cr^(3+)+Fe^(3+)+H_2O),((iii)," "AsO_3^(3-)+IO_3^(-),rarr,AsO_4^(3-)+I^(-)),((iv)," "SnO_2+C,rarr,Sn+CO):}`

Text Solution

Verified by Experts

The correct Answer is:
(i) `5H_2S+2MnO_4^(-) +16H^(+) rarr 5S+2Mn^(2+)+8H_2O`
(ii) `6Fe^(2+)+Cr_2O_7^(2-) +14H^(+) rarr 6Fe^(3+)+2Cr^(3+) +7H_2O`
(iii) `" "3AsO_3^(3-)+IO_3^(-) rarr 3AsO_4^(3-) +I^(-)`
(iv) `" "SnO_2+2CrarrSn+2CO`
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