On the other hand, potassium manganate reacts in both acidic and alkaline media.
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$\begingroup$ Slightly related: chemistry.stackexchange.com/questions/75171/… $\endgroup$– Nilay GhoshJun 4, 2017 at 3:15
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In an alkaline medium, chromium(VI) exists as potassium chromate instead of potassium dichromate:
$$\ce{Cr2O7^2- + 2OH- <=>> 2CrO4^2- + H2O}$$
answered Jun 3, 2017 at 20:58
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$\begingroup$ Interesting information @orthocresol. Does this mean that the $\ce{CrO4^{2-}}$ ion have no oxidative abilities despite being in chromium's highest oxidation state? $\endgroup$ Jun 4, 2017 at 4:59
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