Question:
Identify false statement about zinc.
Identify false statement about zinc.
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Zn: fully filled \(d^{10}\) → diamagnetic, stable.
Updated On: May 4, 2026
- It has no unpaired electron either in observed or in expected electronic configuration.
- It has lowest density amongst all 3d elements.
- It has highest ionization enthalpy amongst 3d elements.
- Magnetic moment of \(\text{Zn}^{++}\) is zero.
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The Correct Option is B
Solution and Explanation
Step 1: Electronic configuration
\[
Zn = [Ar] 3d^{10}4s^2
\]
• No unpaired electrons → (A) True
Step 2: Magnetic property \[ Zn^{2+} = 3d^{10} \Rightarrow \mu = 0 \] → (D) True
Step 3: Ionization enthalpy
• Zn has relatively high IE due to stable \(d^{10}\) configuration → (C) True
Step 4: Density check
• Zinc does not have lowest density among 3d elements Conclusion: \[ \text{False statement = (B)} \]
• No unpaired electrons → (A) True
Step 2: Magnetic property \[ Zn^{2+} = 3d^{10} \Rightarrow \mu = 0 \] → (D) True
Step 3: Ionization enthalpy
• Zn has relatively high IE due to stable \(d^{10}\) configuration → (C) True
Step 4: Density check
• Zinc does not have lowest density among 3d elements Conclusion: \[ \text{False statement = (B)} \]
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