Among the statements <math> <mo>(</mo> <mi>a</mi> <mo>-</mo> <mi>d</mi> <mo>)</mo> </math> , the incorrect ones are: &lt;!-- [if !supportLineBreakNewLine]--&gt; &lt;!--[endif]--&gt;

If the <math> <msub> <mrow> <mrow> <mi mathvariant="normal">Δ</mi> </mrow> </mrow> <mrow> <mrow> <mn>0</mn> </mrow> </mrow> </msub> </math> for an octahedral complex of <math> <mi mathvariant="normal">C</mi> <mi mathvariant="normal">o</mi> </math> (III) is <math> <mn>18,000</mn> <msup> <mrow> <mrow> <mtext> </mtext> <mi mathvariant="normal">c</mi> <mi mathvariant="normal">m</mi> </mrow> </mrow> <mrow> <mrow> <mo>-</mo> <mn>1</mn> </mrow> </mrow> </msup> </math> , the <math> <msub> <mrow> <mrow> <mi mathvariant="normal">Δ</mi> </mrow> </mrow> <mrow> <mrow> <mi mathvariant="normal">t</mi> </mrow> </mrow> </msub> </math> for its tetrahedral complex with the same ligand will be <math> <mn>16,000</mn> <msup> <mrow> <mrow> <mtext> </mtext> <mi mathvariant="normal">c</mi> <mi mathvariant="normal">m</mi> </mrow> </mrow> <mrow> <mrow> <mo>-</mo> <mn>1</mn> </mrow> </mrow> </msup> </math>

Octahedral <math> <mi mathvariant="normal">C</mi> <mi mathvariant="normal">o</mi> </math> (III) complexes with strong field ligands have very high magnetic moments

When <math> <msub> <mrow> <mrow> <mi mathvariant="normal">Δ</mi> </mrow> </mrow> <mrow> <mrow> <mn>0</mn> </mrow> </mrow> </msub> <mo><</mo> <mi mathvariant="normal">P</mi> </math> , the d-electron configuration of <math> <mi mathvariant="normal">C</mi> <mi mathvariant="normal">o</mi> </math> (III) in an octahedral complex is <math> <msubsup> <mrow> <mrow> <mi mathvariant="normal">t</mi> </mrow> </mrow> <mrow> <mrow> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">g</mi> </mrow> </mrow> <mrow> <mrow> <mn>4</mn> </mrow> </mrow> </msubsup> <msubsup> <mrow> <mrow> <mi mathvariant="normal">e</mi> </mrow> </mrow> <mrow> <mrow> <mi mathvariant="normal">g</mi> </mrow> </mrow> <mrow> <mrow> <mn>2</mn> </mrow> </mrow> </msubsup> </math>

Wavelength of light absorbed by <math> <msup> <mrow> <mrow> <mfenced open="[" close="]" separators="|"> <mrow> <mrow> <mi mathvariant="normal">C</mi> <mi mathvariant="normal">o</mi> <mo>(</mo> <mi mathvariant="normal">e</mi> <mi mathvariant="normal">n</mi> <msub> <mrow> <mrow> <mo>)</mo> </mrow> </mrow> <mrow> <mrow> <mn>3</mn> </mrow> </mrow> </msub> </mrow> </mrow> </mfenced> </mrow> </mrow> <mrow> <mrow> <mn>3</mn> <mo>+</mo> </mrow> </mrow> </msup> </math> is lower than that of <math> <msup> <mrow> <mrow> <mfenced open="[" close="]" separators="|"> <mrow> <mrow> <msub> <mrow> <mrow> <mi mathvariant="normal">C</mi> <mi mathvariant="normal">o</mi> <mi mathvariant="normal">F</mi> </mrow> </mrow> <mrow> <mrow> <mn>6</mn> </mrow> </mrow> </msub> </mrow> </mrow> </mfenced> </mrow> </mrow> <mrow> <mrow> <mn>3</mn> <mo>-</mo> </mrow> </mrow> </msup> </math>

Ask & Answer Question

Chemistry NCERT Exemplar Solutions Class 11th Chapter Ten Chemistry Class 12th Chemistry Coordination Compounds

Among the statements $(a - d)$ , the incorrect ones are:

Option 1 -

Octahedral $C o$ (III) complexes with strong field ligands have very high magnetic moments

Option 2 -

When $Δ_{0} < P$ , the d-electron configuration of $C o$ (III) in an octahedral complex is $t_{e g}^{4} e_{g}^{2}$

Option 3 -

Wavelength of light absorbed by ${[C o (e n)_{3}]}^{3 +}$ is lower than that of ${[{C o F}_{6}]}^{3 -}$

Option 4 -

If the $Δ_{0}$ for an octahedral complex of $C o$ (III) is $18,000 {c m}^{- 1}$ , the $Δ_{t}$ for its tetrahedral complex with the same ligand will be $16,000 {c m}^{- 1}$

2 Views | Posted a month ago

Asked by Shiksha User

1 Answer

Answered by

alok kumar singh | Contributor-Level 10

a month ago

Correct Option - 4

Detailed Solution:

In strong ligand field ${C o}^{3 +}$ will have $t_{2 g}^{6} e_{g}^{0}$ of configuration and $Δ t = \frac{4}{9} Δ_{0}$

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