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Chemistry · 2024 · 3 marks
CBSE 2024 · Region 4 · Set 2 · Q22
(a) Draw the geometrical isomers of the given complex: [ Co ( en )_2 Cl_2]^+ (b) Write the electronic configuration of d^4 ion if Δ_0> P. (c) What is…
(a)
Draw the geometrical isomers of the given complex : \[\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{+} \]
(b)
Write the electronic configuration of $\displaystyle \mathrm{d}^{4}$ ion if $\displaystyle \Delta_{0}>\mathrm{P}$.
(c)
What is a didentate ligand ? Give one example. $\displaystyle \mathbf{1} \boldsymbol{\times} \mathbf{3}$
Marking-scheme solution
(a)
Cis isomer
(b)
\(\displaystyle \mathrm{t}_{2 \mathrm{~g}}^{4} \mathrm{e}_{\mathrm{g}}^{0}\)
(c)
When a ligand is bound to a metal atom or ion through two donor atom.
Example: Ethane - $\displaystyle 1$, $\displaystyle 2$ - diamine or \(\displaystyle \mathrm{C}_{2} \mathrm{O}_{4}{ }^{2-}\) .
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CBSE Class 12 Chemistry past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.