1.

When acidified K_(2)Cr_(2)O_(7) solution is added to Sn^(2+) salts then Sn^(2+) changes to ……

Answer»

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

SOLUTION :`Cr_(2)O_(7)^(2-) + 3Sn^(2+) + 14H^(+) RARR 3Sn^(4+) + 2Cr^(3+) + 7H_(2)O`


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