MCQ
The composition of aqua $-$ regia is :
  • A
    Dil. $\ce{HCl}$ : Conc. $\mathrm{HNO}_3 \ \ 3 : 1$
  • B
    Conc. $\ce{HCl}$ : Dil. $\mathrm{HNO}_3 \ \ 3 : 1$
  • Conc.$\ce{HCl}$ : Conc. $\mathrm{HNO}_3 \ 3 : 1$
  • D
    Dil. $\ce{HCl}$ : Dil. $\mathrm{HNO}_3  \ 3 : 1$

Answer

Correct option: C.
Conc.$\ce{HCl}$ : Conc. $\mathrm{HNO}_3 \ 3 : 1$
Aqua $-$ regia is a mixture of concentrated $\ce{HCl}$ and concentrated $\mathrm{HNO}_3$ in $3 : 1$ ratio.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free