In which of the following is gold soluble?

  • A
    Concentrated $HCl$
  • B
    Concentrated $H_2SO_4$
  • C
    Concentrated $HNO_3$
  • D
    Aqua regia

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Similar Questions

Compound $A$ and $B$ respectively are :-
$Cl_2 + 2NaOH (cold \& dil.) \rightarrow A + NaCl + H_2O$
$3Cl_2 + 6NaOH (hot \& conc.) \rightarrow B + 5NaCl + 3H_2O$

Which of the following is formed when potassium iodide is heated with concentrated $H_2SO_4$?

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The anhydride of perchloric acid $(HClO_4)$ is:

The reaction of concentrated $H_2SO_4$ with $KI$ does not produce $HI$ because........

Oxygen reacts directly with all of the following elements except:

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