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Acids, Bases and Salts — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts1 Mark
MCQ
The aqua regia is :
  • A
    $\ce{3HNO(conc.) + 1 HCl(conc.)}$
  • B
    $3 \mathrm{HCl} \text { (conc.) }+1 \mathrm{HNO}_3 \text { (conc.) }$
  • C
    $\mathrm{HNO}_3 \text { (conc.) }+\mathrm{H}_2 \mathrm{SO}_4 \text { (conc.) }$
  • ✓
    $\mathrm{HNO}_3 \text { (conc.) }+\mathrm{HCl} \text { (conc.) }$
✓

Answer

Correct option: D.
$\mathrm{HNO}_3 \text { (conc.) }+\mathrm{HCl} \text { (conc.) }$
$\ce{HCl}$ one part of $\mathrm{HNO}_3$ solution called aqua regia in chemistry.
Every metal soluble in this solution. So we calll it king of acids.

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