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STD 12 - 4. d and f- block elements — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 4. d and f- block elements4 Marks
MCQ
Assertion : $SnI_4$ is an orange solid.

Reason : The colour arises due to charge transfer.

  • ✓
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: A.
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
a
The orange colour of $SnI_4$ is due to charge transfer spectra. Blue light is absorbed by the compound which causes the transfer of an $e^-$ from $I$ to $Sn$. (Here charge is transferred from one atom to another atom.) The reflected light thus contains a higher proportion of red and orange.

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