Q. Oleum is
A) Fuming $H_{2}SO_{4}$
B) Oil of vitriol
C) Castor oil
D) Caro’s acid
Explanation
(a)
Oleum is $H_{2}S_{2}O_{7}$ which is obtained by dissolving $SO_{3}$ in $H_{2}SO_{4}$ and is also called as fuming sulphuric acid
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.