The d- and f-Block Elements

Bihar Board Class 12 · Chemistry · 31 past questions

2 of 31 · show all

1. Q1 2026 Set A

   If the electronic configuration of a transition element in its +3 oxidation state is [Ar]3d$^4$, then its…

   Try it →
2. Q2 2026 Set A

   The most common oxidation state of lanthanide elements is

   Try it →