Given below are two statements:
Statement I: The identification of Ni²⁺ is carried out by dimethyl glyoxime in the presence of NH₄OH.
Statement II: The dimethyl glyoxime is a bidentate neutral ligand.

Question

Given below are two statements:
Statement I: The identification of Ni²⁺ is carried out by dimethyl glyoxime in the presence of NH₄OH.
Statement II: The dimethyl glyoxime is a bidentate neutral ligand.
Choose the correct answer:

Canvas Classes · Accepted Answer

Strategy:
 Review the qualitative test for  using dimethylglyoxime (DMG).

Step 1: Evaluate Statement I
When  reacts with DMG in a basic medium (like ), a bright rosy-red precipitate of the nickel-DMG complex  is formed.
Statement I is True.

Step 2: Evaluate Statement II
DMG acts as a bidentate ligand, coordinating to the nickel atom through two nitrogen atoms. In the complex formation, it loses a proton () to become a monoanionic ligand (). Therefore, the ligand acting in the complex is NOT ne

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