MCQ
A group of atoms can function as a ligand only when
- AIt is a small molecule
- ✓It has an unshared electron pair
- CIt is a negatively charged ion
- DIt is a positively charged ion
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In a closed vessel follows first order kinetics. If starting with pure $N_2O(g)$ total pressure after time $'t'$ is $P_t$ and after a very long time is $P_\infty$ then which of the following expressions is correct
Statement $(I)$: A solution of $\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ is green in colour.
Statement $(II)$: A solution of $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ is colourless.
In the light of the above statements, choose the most appropriate answer from the options given below: