Given below are two statements :
Statement 1 : The identification of $\mathrm{Ni}^{2+}$ is carried out by dimethyl glyoxime in the presence of $\mathrm{NH}_4 \mathrm{OH}$.
Statement II : The dimethyl glyoxime is a bidentate neutral ligand.
In the light of the above statements, choose the correct answer from the options given below:
Select the correct option:
A
Statement I is false but Statement II is true.
B
Both Statement I and Statement II are false.
C
Statement I is true but Statement II is false.
D
Both Statement I and Statement II are true.
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
Neutral dimethyl glyoxime does not act as ligand. When $\mathrm{Ni}^{2+}$ reacts with dimethyl glyoxime in presence of $\mathrm{NH}_4 \mathrm{OH}$, it produce dimethyl glyoximate then it form rozy red ppt.
$$
\mathrm{Ni}^{2+}{ }_{(\mathrm{aq})}+2 \mathrm{dmg}^{-} \rightarrow\left[\underset{\text { Rosyred pot. }}{\left[\mathrm{Ni}\left(\mathrm{dmg}_2\right]\right.}\right]
$$
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