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0 votes
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in Chemistry by (122k points)
When KOH solution is added to potassium dichromate solution,the colour of solution changes to yellow because :
A. chromate ion changes to dichromate ion
B. dichromate ion changes to chromate ion
C. oxidation number of chromium changes from +6 to +4
D. oxidation number of chromium changes from +4 to +6

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1 Answer

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by (121k points)
Correct Answer - A::B::C::D

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