1.

The oxidation state of chromium in the final product obtained when H_(2)O_(2) is treated with acidified K_(2)Cr_(2)O_(7) is …..

Answer»

`+2`
`+3`
`+5`
`+6`

Solution :`K_(2)Cr_(2)O_(7) + 4H_(2)O_(2) + H_(2)SO_(4) rarr UNDERSET((+6))(2CrO_(5)) + K_(2)SO_(4) + 5H_(2)O`


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