Question

Choose the correct statement.

(a) Both actinoids and lanthanoids are less basic

(b) Both actinoids and lanthanoids do not show same oxidation of +3

(c) Both actinoids and lanthanoids do not exhibit magnetic and spectral properties

(d) Both actinoids and lanthanoids are electropositive

I got this question during an online interview.

This intriguing question originated from D and F-Block Elements topic in chapter D and F-Block Elements of Chemistry – Class 12

Answer 1

Correct option is (d) Both actinoids and lanthanoids are electropositive

Explanation: Lanthanides and actinides involve filling of f-orbitals and thus are similar in many respects. The most common oxidation state is +3 for both lanthanides and actinides. Both are electropositive in nature and thus very reactive. Magnetic and spectral properties are exhibited by both lanthanides and actinides.