Question

the colour of Cr2O7 is due to ​

Answer 1

Answer:

electron transfer

Explanation:

The orange color of dichromate is due to charge (electron) transfer from O2- ligands to the empty d orbitals of the central metal Cr6+, i.e. LMCT. This electronic transfer absorbs greenish blue light and leaves the complimentary orange light behind as the observed colour.

Answer 2

Answer:

Explanation:

The orange color of dichromate is due to charge (electron) transfer from O2- ligands to the empty d orbitals of the central metal Cr6+, i.e. LMCT. This electronic transfer absorbs greenish blue light and leaves the complimentary orange light behind as the observed colour.