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  4. The difference in oxidation state of chromium in chromate and dichromate salts is

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Q. The difference in oxidation state of chromium in chromate and dichromate salts is _______

JEE MainJEE Main 2022The d-and f-Block Elements

Solution:

$\overset{+6}{Cr}O _{4}^{2-}, \overset{+6}{Cr} _{2}\, O _{7}^{2-}$ difference is zero