Q. When dil. $H_{2}{SO}_{4}$ is added to aqueous solution of potassium chromate, yellow colour of solution turns to orange colour. It indicates
A) Chromate ions are reduced.
B) Chromate ions are oxidised.
C) Mono centric complex is converted into dicentric complex.
D) Oxygen gets removed from chromate ions.
Explanation
(c)
Yellow colour of the potassium chromate changes to orange on acidification. It is due to the formation of dichromate ions
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Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.