Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Sc 
is a transition element but Zn 
is not because
A
both 
and 
ions are colourless and form white compounds.
and ions are colourless and form white compounds.
B
in case of Sc, 
orbitals are partially filled but in Zn these are filled.
orbitals are partially filled but in Zn these are filled.
C
last electron is assumed to be added to 
level in case of Zn.
level in case of Zn.
D
both Sc and Zn do not exhibit variable oxidation states
Text Solution
Verified by ExpertsThe correct answer is:
B
Sc 
has incompletely filled 
‐ orbitals in its ground state 
, it is considered as a transition element but Zn 
has completely filled 
‐ orbitals 
in its ground state and its common oxidation state of 
, it is not considered as a transition element.
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