Home › Bihar Board Class 12 (Science) › Chemistry › d- and f-Block Elements › Which lanthanoid ion has a half-filled 4f set an…
Which lanthanoid ion has a half-filled 4f set and acts as an oxidant?
ATb4+
BYb2+
CEu2+
DCe3+
Answer & Solution
Correct answer: A. Tb4+
Tb4+ is 4f7 and readily gains an electron to return to the +3 state, so it is an oxidant.
Related questions
What is the general oxidation state shown by the actinoids?Which property is shared by all the actinoid elements?Colour of trivalent lanthanoid ions is attributed to what?Which statement about interstitial compounds such as TiC is correct?Which ore is fused with sodium carbonate to make sodium chromate?Which ore is used to prepare potassium permanganate?The name transition metals first referred to properties transitional between which blocks?Why are zirconium and hafnium found together in nature and hard to separate?