CBSE 2023 · Region 2 · Set 1 · Q30 · 3 marks
(a)Draw the geometrical isomers of $\displaystyle \left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{2+}$. Which geometrical isomer of $\displaystyle \left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{2+}$ is not optically active and why ? $\displaystyle 2+1$(b)Write the hybridisation and magnetic behaviour of $\displaystyle \left[\mathrm{CoF}_{6}\right]^{3-}$. [Given : Atomic number of Co = $\displaystyle 27$]
(a)
Draw the geometrical isomers of $\displaystyle \left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{2+}$. Which geometrical isomer of $\displaystyle \left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{2+}$ is not optically active and why ? $\displaystyle 2+1$
(b)
Write the hybridisation and magnetic behaviour of $\displaystyle \left[\mathrm{CoF}_{6}\right]^{3-}$. [Given : Atomic number of Co = $\displaystyle 27$]
Marking-scheme solution
(a)
<smiles>ClC1(Cl)CCCCCCCCCCCCCC1</smiles>
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CBSE Class 12 Chemistry past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.