NEET2025Chemistry-dimagnetism and paramagnetism
NEET 2025 Chemistry Magnetic Properties Multiple Correct Question
Type: Multiple Correct-conceptual-Easy-Class 12
Which of the following are paramagnetic?
A. [NiCl₄]²⁻
B. Ni(CO)₄
C. [Ni(CN)₄]²⁻
D. [Ni(H₂O)₆]²⁺
E. Ni(PPh₃)₄
Choose the correct answer from the options given below: (1) A and C only (2) B and E only (3) A and D only (4) A, D and E only
A
A and C only
B
B and E only
C
A and D only
D
A, D and E only
Correct Answer
Option C
Detailed Explanation
[NiCl₄]²⁻ and [Ni(H₂O)₆]²⁺ are paramagnetic due to unpaired electrons in the d-orbitals. Ni(CO)₄ and [Ni(CN)₄]²⁻ are diamagnetic as they have paired electrons.
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