1.

Which will be the proper alternative in place of A in the following equation ? 2Fe^(+3)+Sn^(+2)to2Fe^(+2)+A

Answer»

`SN^(4+)`
`Sn^(3+)`
`Sn^(2+)`
Sn

Solution :`2Fe^(+3)+Sn^(+2)to2Fe^(+2)+A`
Total charge = `2(+3)+(+2)TO2(+2)+A`
= `(+6)+(+2)to(+4)+A`
= `(+8)to(+4)+A`
So, A = +4 which is in `Sn^(+4)`


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