NTA Abhyas JEE Main2020Chemistryd and f Block ElementsPractice
When dilute H 2 S O 4 and H 2 O 2 are added to a solution of chromate ions, an intense blue colour is produced, which is stable in ether. This is due to the formation of
Options
- AC r 2 O 7 2 -
- BC r 2 O 3
- CC r O 5
- DC r O 3
Correct answer
C. C r O 5
Step-by-step solution
The blue colour is due to the formation of C r O 5 C r O 4 2 - + 2 H + + 2 H 2 O 2 → C r O 5 B l u e + 3 H 2 O