CrO 3 dissoloves in aqueous NaOH to give -A- Cr OH 3B- CrO 42C- Cr 2 O 72D- Cr OH 2

The correct option is B CrO^2 _4 Chromate ion exists in alkaline medium ...

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Potassium Dichromate

CrO 3 dissolo...

Question

$C r O_{3}$ dissoloves in aqueous NaOH to give :

$C r_{2} O_{7}^{2 -}$

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$C r O_{4}^{2 -}$

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$C r (O H)_{3}$

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$C r (O H)_{2}$

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Solution

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