Which of the following compounds is(are) coloured due to charge transfer spectra and not due to d-d transitions?

Question

Which of the following compounds is(are) coloured due to charge transfer spectra and not due to d-d transitions? (A) K2Cr2O7 (B) KMnO4 (C) CrO3 (D) All of these

Tardigrade Admin · Accepted Answer

K2Cr2O7,KMnO4 and CrO3 are coloured due to charge transfer as in them there is no unpaired d-orbital electron. So d-d electronic transition is not possible.

Q. Which of the following compounds is(are) coloured due to charge transfer spectra and not due to d-d transitions?

$K_{2} C r_{2} O_{7}$

$K M n O_{4}$

$C r O_{3}$

All of these

$K_{2} C r_{2} O_{7}, K M n O_{4}$ and $C r O_{3}$ are coloured due to charge transfer as in them there is no unpaired d-orbital electron. So d-d electronic transition is not possible.

Q. Which of the following compounds is(are) coloured due to charge transfer spectra and not due to d-d transitions?

K2​Cr2​O7​

KMnO4​

CrO3​

All of these

K2​Cr2​O7​,KMnO4​ and CrO3​ are coloured due to charge transfer as in them there is no unpaired d-orbital electron. So d-d electronic transition is not possible.

$K_{2} C r_{2} O_{7}$

$K M n O_{4}$

$C r O_{3}$

$K_{2} C r_{2} O_{7}, K M n O_{4}$ and $C r O_{3}$ are coloured due to charge transfer as in them there is no unpaired d-orbital electron. So d-d electronic transition is not possible.