Q. Which one of the following compounds is a peroxide?
A) NO₂
B) KO₂
C) BaO₂
D) MnO₂
Explanation
[Solution from source] BaO₂ contains the peroxide ion O₂²⁻ (O–O single bond). KO₂ is a superoxide (O₂⁻), and NO₂ and MnO₂ are ordinary oxides with no O–O bond. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.