List of top Chemistry Questions on d -and f -Block Elements asked in WBJEE

The common stable oxidation states of Eu and Gd are respectively

Nickel combines with a uninegative monodentate ligand (X^-) to form a paramagnetic complex [NiX4]^2-.The hybridization involved and number of unpaired electrons present in the complex and respectively

The calculated spin-only magnetic moment values in BM for [FeCl₄]^- and [Fe(CN)₆]^3- are