Q. Aqua-regia is
A) 1:3 conc. HNO_{3} and conc. HCl
B) 1:2 conc. HNO_{3} and conc. HCl
C) 3:1 conc. HNO_{3} and conc. HCl
D) 2:1 conc. HNO_{3} and conc. HCl
Explanation
(a)
Aqua-regia is the mixture of 3 part conc. HCl and 1 part conc. HNO_{3}. It is a very strong acid which can dissolve noble metals.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.