Which of the following statements about is correct?

Question

Which of the following statements about  is correct?

Canvas Classes · Accepted Answer

Zinc (Zn, Z=30):

A. Zn is a transition element — FALSE ✗

Transition elements have partially filled d orbitals in ground state or common ionic states. Zn has  (fully filled) in both Zn and Zn²⁺ → NOT a transition element by strict definition.

B. Zn does not show variable oxidation states — TRUE ✓

Zn shows only +2 oxidation state. It cannot show variable states because:
- Zn²⁺ () is the only stable ion
- Losing more electrons would require breaking the stable  shell

C. Zn forms coloured comp

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