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Karnataka Board PUCPUC Science 2nd PUC Class 12

Assertion: [Fe(CN)X6]X3− ion shows magnetic moment corresponding to two unpaired electrons. Reason: Because it has d2sp3 type hybridisation.

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Question

Assertion: \[\ce{[Fe(CN)6]^{3-}}\] ion shows magnetic moment corresponding to two unpaired electrons.

Reason: Because it has d2sp3 type hybridisation.

Options

  • Assertion and reason both are true, reason is correct explanation of assertion.

  • Assertion and reason both are true but reason is not the correct explanation of assertion.

  • Assertion is true, reason is false.

  • Assertion is false, reason is true.

MCQ
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Solution

Assertion is false, reason is true.

Explanation:

The assertion, "\[\ce{Fe(CN)6]^{3-}}\] ion shows magnetic moment corresponding to two unpaired electron" is false as it contains only one unpaired electron only d2sp3 hybridisation, which cannot be regarded as a true reason for its weak paramagnetic behaviour.

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Chapter 9: Coordination Compounds - Exercises [Page 127]

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NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 9 Coordination Compounds
Exercises | Q V. 45. | Page 127

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