Question 8 - MCQs from NCERT Exemplar - Chapter 3 Class 10 - Metals and Non-Metals

Last updated at July 14, 2026 by

The composition of aqua-regia is

(A) Dil.HCl : Conc. HNO 3  

  3 : 1

(B) Conc.HCl : Dil. HNO 3

  3 : 1

(C) Conc.HCl : Conc.HNO 3

  3 : 1

(D) Dil.HCl : Dil.HNO 3

  3 : 1

 

Answer

 

The composition of aqua regia is Conc.HCl : Conc.HNO 3

                                                   3   :          1

 

aqua regia 3 1 HCl to HNO3 - Teachoo.png

So, the correct answer is (c) 

 

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