JEE PYQ: Coordination Compounds Question 8
Question 8 - 2021 (25 Feb Shift 2)
Given below are two statements:
Statement I: The identification of $\text{Ni}^{2+}$ is carried out by dimethyl glyoxime in the presence of $\text{NH}_4\text{OH}$.
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:
(a) Both Statement I and Statement II are true (b) Both Statement I and Statement II are false (c) Statement I is false but Statement II is true (d) Statement I is true but Statement II is false
Show Answer
Answer: (d)
Solution
Dimethyl glyoxime is a negative bidentate ligand (not neutral). It forms a rose-red precipitate with Ni$^{2+}$ in presence of NH$_4$OH. Statement I is correct, Statement II is incorrect.