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Chemistry · 2023 · 1 mark
The d-and f-Block ElementsElectronic Configurations of the d-Block Elements1 markUnderstandassertion reason
CBSE 2023 · Region 2 · Set 1 · Q17
Assertion (A): Copper is a non-transition element. Reason (R): Copper has completely filled d-orbitals in its ground state.
Assertion (A) : Copper is a non-transition element.
Reason (R) : Copper has completely filled d-orbitals in its ground state.
Official answer
(D)
(A) is false, but (R) is true.
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CBSE Class 12 Chemistry past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.