D And F Block Elements 01 Ques6

Question: Which of the following statements about lanthanoid alloys is incorrect?

Options:

A) Lanthanoids can form alloys with other lanthanoids

B) Lanthanoids can form alloys with transition metals

C) Lanthanoid alloys always have lower melting points than pure lanthanoids

D) Some lanthanoid alloys have improved magnetic properties

Show Answer

Answer: c

Explanation:

A) Lanthanoids can indeed form alloys with other lanthanoids.

B) Lanthanoids can form alloys with transition metals.

C) This statement is incorrect. Lanthanoid alloys can have higher or lower melting points than pure lanthanoids, depending on the composition.

D) Some lanthanoid alloys do exhibit improved magnetic properties compared to pure lanthanoids.