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4. d and f- block elements — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry4. d and f- block elements1 Mark
MCQ
Solution of $MnO_4^-$ is purple-coloured due to
  • A
    $d-d-$ transition
  • ✓
    charge transfer from $O$ to $Mn$
  • C
    due to both $d-d-$ transition and charge transfer
  • D
    none of these
✓

Answer

Correct option: B.
charge transfer from $O$ to $Mn$
b
Correct Answer is: (B) charge transfer from O to Mn

$\mathrm{MnO}_{4}^{-}$ has purple colour due to change transfer

$\mathrm{Mn}^{7+}, \mathrm{O}^{2-} \underset{\mathrm{CTML}}{\stackrel{\mathrm{CTLM}}{\leftrightarrows}} \mathrm{Mn}^{6+}, \mathrm{O}^{-}$

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