NEET2013Chemistry-d and f Block Elements
NEET 2013 Chemistry Transition Elements MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Sc (Z = 21) is a transition element but Zn (Z = 30) is not because
A
both Sc³⁺ and Zn²⁺ ions are colourless and form white compounds
B
in case of Sc, 3d orbitals are partially filled but in Zn these are filled
C
last electron is assumed to be added to 4s level in case of Zn
D
both Sc and Zn do not exhibit variable oxidation states
Correct Answer
Option B
Detailed Explanation
Scandium has partially filled d-orbitals, making it a transition element, whereas zinc has fully filled d-orbitals.
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