Easy· The Lanthanides (Oxidation State)· +4 / −1
Although +3 oxidation state is most common in lanthanoids, cerium still shows +4 oxidation state because:
Gadolinium has a low value of third ionisation enthalpy because of:
NEET 2022 · Hard
The calculated 'spin-only' magnetic moment of Ti^2+ ( 3d^2 ) is:
NEET 2026 · Easy
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Generally, 3d…
RE-NEET 2026 · Easy
The lanthanide ion having four unpaired electrons is (Given : Atomic numbers of Ce = 58, Nd = 60, Tb = 65 and Ho = 67)
RE-NEET 2026 · Medium
The green paramagnetic species formed by heating KMnO_4 at 513 K is
RE-NEET 2026 · Easy
The stability of Cu^2+ is more than Cu^+ salts in aqueous solution due to -
NEET 2023 · Easy