In aqua-regia the ratio of conc. HNO 3 and conc. HCl present is :

Question

In aqua-regia the ratio of conc. HNO 3 and conc. HCl present is : (A) 1: 3 (B) 3: 1 (C) 2: 3 (D) 3: 2

Tardigrade Admin · Accepted Answer

Aqua-regia is a mixture of conc. HNO 3 and conc. HCl in the ratio 1: 3. Noble metals like gold and platinum are highly unreactive but react with aqua-regia forming respective chlorides underbrace HNO 3 text aquaregia +3 HCl longrightarrow underset text Nitrosyl chloride NOCl +2 H 2 O +2 Cl Au +3 Cl longrightarrow AuCl 3 Pt +4 Cl longrightarrow PtCl 4

Q. In aqua-regia the ratio of conc. $H N O_{3}$ and conc. $H Cl$ present is :

1 : 3

3 : 1

2 : 3

3 : 2

Q. In aqua-regia the ratio of conc. HNO3​ and conc. HCl present is :

1 : 3

3 : 1

2 : 3

3 : 2

Aqua-regia is a mixture of conc. HNO3​ and conc. HCl in the ratio 1:3. Noble metals like gold and platinum are highly unreactive but react with aqua-regia forming respective chlorides aquaregia HNO3​​​+3HCl⟶ Nitrosyl chloride NOCl​+2H2​O+2Cl Au+3Cl⟶AuCl3​ Pt+4Cl⟶PtCl4​

Q. In aqua-regia the ratio of conc. $H N O_{3}$ and conc. $H Cl$ present is :