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An Intiative by Sri Chaitanya
a
H2O2 oxidises ice-cooled acidic Cr2O72− or CrO42− in ether to a compound having butterfly structure.
b
The ethereal layer turn red in colour due to the formation of CrOO22
c
The colour fades away gradually due to decomposition of CrOO22 to Cr3+ and O2
d
The oxidation state of Cr in butterfly structure is +6.
answer is B.
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