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What would happen when a solution of potassium chromate is treated with an excess of dilute nitric acid?

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asked Mar 31, 2018 in Chemistry by paayal (26,720 points) ● 4 ● 6 ● 11

What would happen when a solution of potassium chromate is treated with an excess of dilute nitric acid?
(a) Cr3+ and Cr2O72– are formed
(b) Cr2O72– and H2O are formed
(c) CrO42– is reduced to +3 state of Cr
(d) CrO42– is oxidised to +7 state of Cr.

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answered Mar 31, 2018 by sanjaydas (61,430 points) ● 5 ● 7 ● 7
selected Apr 1, 2018 by Vikash Kumar
 
Best answer

(b) : Dilute nitric acid converts chromate into dichromate and H2O.

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