Question 29Aqua-regia is a mixture of_____A.One part of conc. HNO2 and one part of conc. HClB.Three parts of conc. HNO3 and one part of conc. HClC.Two parts of conc. HNO3 and one part of conc. HClD.One part of conc. HNO3 and three parts of conc. HClObjective Show full explanation