Aqua regia is a mixture of :
1 part of conc. hydrochloric acid and 3 parts of conc. sulphuric acid.
1 part of conc. sulphuric acid and 3 parts of conc. hydrochloric acid.
1 part of conc. nitric acid and 3 parts of conc. hydrochloric acid.
1 part of conc. hydrochloric acid and 3 parts of conc. nitric 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]
Give a chemical test to distinguish between :
(a) dilute sulphuric acid and dilute hydrochloric acid,
(b) dilute sulphuric acid and conc. sulphuric acid.