Chemistry - f-block Question with Solution | TestHub

Question Explanation:

Find the incorrect statement about lanthanide properties.

Concept:

This question is based on lanthanide properties.

Solution:

(1) In f-block on moving from left to right due to lanthanide contraction size decreases, hence E.N. increases so acidic nature of hydroxides increases.

(2) C₂^2-on hydrolysis gives C₂H₂ 

(3) & (4) f-block elements uses

Final Answer: The correct option is (A)