CBSE 2024 · Region 3 · Set 2 · Q2 · 1 mark
On adding $\displaystyle \mathrm{AgNO}_{3}$ solution to $\displaystyle 1$ mole of complex $\displaystyle \mathrm{NiCl}_{2} \cdot 4 \mathrm{NH}_{3}$, two moles of AgCl are formed. The secondary valency of Ni in the complex will be :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle 4$
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CBSE Class 12 Chemistry past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.