QJEEM22Ch654b: JEE Main 2022 Chemistry - Class 12 JEEM22Ch654b Solution: The difference in oxidation state of chromium in chromate and…

Question

Verified Solution • 2025–26 Session moderate

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

Accepted Answer

Chromate ion

\rightarrow \mathrm{CrO}_{4}^{2-}

, oxidation state of

\mathrm{Cr}=+6

Dichromate ion

\rightarrow \mathrm{Cr_2O}_{7}^{2-}

, oxidation state of

\mathrm{Cr}=+6

\therefore

Difference in oxidation state

=

zero

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