The oxidation state of chromium in the final product formed by the reaction between $KI$ and acidified potassium dichromate solution is
- A$+4$
- B$+6$
- C$+2$
- D$+3$
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The number of moles of $K_2Cr_2O_7$ reduced by $1 \, mol$ of $Sn^{2+}$ is:
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MediumWBJEE 2010
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