Q. Which of the following forms vortex ring?
A) P_{2}O_{5}
B) PH_{3}
C) NH_{3}
D) P_{4}O_{10}
Explanation
(b)
Phosphine forms vortex rings of P_{2}O_{5} when it comes in contact of air .These rings are in the form of white smoke .They are used in making smoke screen in warfare.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.