Why K2Cr2O7 shows yellow colour............???????????????
Why K2Cr2O7 shows yellow colour............???????????????
Harshit Singh , 5 Years ago
Grade 12th pass
Inorganic Chemistry> Why K2Cr2O7 shows yellow colour.............
1 AnswersPawan Prajapati
Answer:
The color change depends on the changes in the pH of the solution. Dichromate salts contain the dichromate anion, Cr2O72- and chromate salts contain chromate anion, CrO42−. When an alkali is added to an orange red solution of dichromate, an yellow solution is obtained due to the formation of chromate ions.
Thanks
The color change depends on the changes in the pH of the solution. Dichromate salts contain the dichromate anion, Cr2O72- and chromate salts contain chromate anion, CrO42−. When an alkali is added to an orange red solution of dichromate, an yellow solution is obtained due to the formation of chromate ions.
Thanks
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