What is strong acid, weak acid, dilute acid and concentrated acid?
And why?
How strong acid are different from concentrated acid and how dilute acid is different from weak acid?
Choose the correct answer from the options given below: Aqua regia is a mixture of: (a) dilute hydrochloric acid and concentrated nitric acid (b) Concentrated hydrochloric acid and dilute nitric acid (c) Concentrated hydrochloric acid [1 part] and concentrated nitric acid [3 parts] (d) Concentrated hydrochloric acid [3 parts] and concentrated nitric acid [1 part]