Question:
Which of the following is NOT an example of diamagnetic substance?
Which of the following is NOT an example of diamagnetic substance?
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Transition metals usually have unpaired electrons → paramagnetic.
Updated On: May 4, 2026
- \(\text{N}_2\)
- \(\text{F}_2\)
- \(\text{NaCl}\)
- Co
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Concept:
• Diamagnetic substances → All electrons paired
• Paramagnetic substances → At least one unpaired electron
Step 1: Analyze options.
• (A) \(N_2\) → All electrons paired \checkmark
• (B) \(F_2\) → All electrons paired \checkmark
• (C) NaCl → Ionic compound, paired electrons \checkmark
• (D) Co → Transition metal with unpaired electrons \checkmark (NOT diamagnetic)
Step 2: Conclusion. \[ \text{Cobalt (Co) is paramagnetic, hence not diamagnetic} \]
• Diamagnetic substances → All electrons paired
• Paramagnetic substances → At least one unpaired electron
Step 1: Analyze options.
• (A) \(N_2\) → All electrons paired \checkmark
• (B) \(F_2\) → All electrons paired \checkmark
• (C) NaCl → Ionic compound, paired electrons \checkmark
• (D) Co → Transition metal with unpaired electrons \checkmark (NOT diamagnetic)
Step 2: Conclusion. \[ \text{Cobalt (Co) is paramagnetic, hence not diamagnetic} \]
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