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An element A in a compound AB has oxidat...

An element A in a compound AB has oxidation number -n. IT is oxidized by `Cr_(2)O_(7)^(2-)` in acid medium. In the experiment `1.68xx10^(-3)` moles of `K_(2)Cr_(2)O_(7)` was used for `3.36xx10^(-3)` moles of AB. The new oxidation number of A after oxidation is

A

3

B

`3-n`

C

`n-3`

D

`+n`

Text Solution

Verified by Experts

The correct Answer is:
B
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