JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry

નીચે આપેલ સાચું વલણ ઓળખો. (પરમાણ્વીય ક્રમાંક \(= Ti : 22,\) \(Cr : 24\) અને \(Mo : 42\) )

A \({{[Cr{{({{H}_{2}}O)}_{6}}]}^{2+}}>\,{{[Mo{{({{H}_{2}}O)}_{6}}]}^{2+}}\) નો \({\Delta _0}\) અને \({[Ti{({H_2}O)_6}]^{3 + }} > {[Ti{({H_2}O)_6}]^{2 + }}\) નો \({\Delta _0}\)
B \({[Cr{({H_2}O)_6}]^{2 + }} > {[Mo{({H_2}O)_6}]^{2 + }}\) નો \({\Delta _0}\) અને \({[Ti{({H_2}O)_6}]^{3 + }} < {[Ti{({H_2}O)_6}]^{2 + }}\) નો \({\Delta _0}\)
C \({[Cr{({H_2}O)_6}]^{2 + }} < {[Mo{({H_2}O)_6}]^{2 + }}\) નો \({\Delta _0}\) અને \({[Ti{({H_2}O)_6}]^{3 + }} > {[Ti{({H_2}O)_6}]^{2 + }}\) નો \({\Delta _0}\)
D \({[Cr{({H_2}O)_6}]^{2 + }} < {[Mo{({H_2}O)_6}]^{2 + }}\) નો \({\Delta _0}\) અને \({[Ti{({H_2}O)_6}]^{3 + }} < {[Ti{({H_2}O)_6}]^{2 + }}\) નો \({\Delta _0}\)

Verified Solution

Answer & Solution

Correct Answer

(C) \({[Cr{({H_2}O)_6}]^{2 + }} < {[Mo{({H_2}O)_6}]^{2 + }}\) નો \({\Delta _0}\) અને \({[Ti{({H_2}O)_6}]^{3 + }} > {[Ti{({H_2}O)_6}]^{2 + }}\) નો \({\Delta _0}\)

Step-by-step Solution

Detailed explanation

The splitting is affected by the oxidation state of the central metal ion. A higher oxidation state leads to larger spitting hence. \({\Delta _0}\) of \({{[Ti{{({{H}_{2}}O)}_{6}}]}^{3+}}>\) \({\Delta _0}\) of \({{[Ti{{({{H}_{2}}O)}_{6}}]}^{2+}}\) Further \({\Delta _0}\) also…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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સૂચિ - I ને સૂચિ - II સાથે જોડો :

સૂચિ - I (ઉપકરણો)	સૂચિ - II (બૅટરી / કોષ)
(A) ટ્રાન્ઝિસ્ટર	(I) એનોડ \(-\text{Zn} / \text{Hg};\) કેથોડ \(- \text{HgO} +\text C\)
(B) શ્રવણ યંત્રો	(II) હાઇડ્રોજન ઈંધણ કોષ
(C) ઇન્વર્ટર	(III) એનોડ \(-\text{Zn};\) કેથોડ \(-\) કાર્બન
(D) એપોલો અવકાશયાન	(IV) એનોડ \(-\text{Pb};\) કેથોડ \(- \text{Pb} \mid \text{PbO} _2\)

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