JEE Main 202623 JanuaryMorning Shift
- Exam
- JEE Main
- Year
- 2026
- Date
- 23 January
- Shift
- Morning Shift
- Subject
- Chemistry
- Chapter
- Coordination Compounds
JEE Main 2026 · 23 January · Morning Shift · Chemistry · Coordination Compounds
The statements that are incorrect about the nickel(II) complex of...
The statements that are incorrect about the nickel(II) complex of dimethylglyoxime are :
A. It is red in colour.
B. It has a high solubility in water at .
C. The Ni ion has two unpaired d-electrons.
D. The bond angle is almost close to .
E. The complex contains four five-membered metallacycles (metal containing rings).
Choose the correct answer from the options given below :
A. It is red in colour.
B. It has a high solubility in water at .
C. The Ni ion has two unpaired d-electrons.
D. The bond angle is almost close to .
E. The complex contains four five-membered metallacycles (metal containing rings).
Choose the correct answer from the options given below :
Options
- AC and D Only
- BC and E Only
- CB, C and E Only
- DA, D and B Only
Correct answer
C. B, C and E Only
Step-by-step solution
Statement A is incorrect as the complex is yellow-green, not red.
Statement B is incorrect because the complex shows low solubility in water, especially at neutral pH.
Statement C is incorrect because Ni(II) in square planar geometry has all d-electrons paired (d^8 configuration), not unpaired electrons.
Statement D is correct regarding the N-Ni-N bond angle being approximately 90° in square planar geometry.
Statement E is correct as the complex contains two five-membered metallacycles (chelate rings) per dimethylglyoxime molecule.
The incorrect statements are B, C, and E.
Statement B is incorrect because the complex shows low solubility in water, especially at neutral pH.
Statement C is incorrect because Ni(II) in square planar geometry has all d-electrons paired (d^8 configuration), not unpaired electrons.
Statement D is correct regarding the N-Ni-N bond angle being approximately 90° in square planar geometry.
Statement E is correct as the complex contains two five-membered metallacycles (chelate rings) per dimethylglyoxime molecule.
The incorrect statements are B, C, and E.