Q. Which lanthanoid compound is used as a most powerful liquid lasers after dissolving it in selenium oxychloride?
A) Cerium oxide
B) Neodymium oxide
C) Promethium sulphate
D) Ceric sulphate
Explanation
(b)
Neodymium oxide $(Nd_{2}O_{3})$ dissolved in selenium oxychloride is one of the most powerful liquid lasers known so far
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.