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D and F Block Elements question

2013 · Q95
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D and F Block Elements question

2013 · Q95

NEETChemistryD and F Block ElementsMCQ+4 / −1
Sc (Z = 21) is a transition element but Zn (Z = 30) is not because
  1. A
    both Sc3+ and Zn2+ ions are colourless and form white compounds.
  2. B
    in case of Sc, 3d orbitals are partially filled but in Zn these are filled.
  3. C
    last electron is assumed to be added to 4s level in case of Zn.
  4. D
    both Sc and Zn do not exhibit variable oxidation states.
View written solutionFree

Correct answer: B

A transition element must have incomplete d-subshell. Zinc have completely filled d subshell having 3d10 configuration. Hence do not show properties of transition elements to any appreciable extent except for their ability to form complexes.

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