MCQ
For gold plating, the electrolyte used is
- A$AuC{l_3}$
- B$HAuC{l_4}$
- ✓$k[Au{(CN)_2}]$
- DNone of these
✓
Answer
Correct option: C.
$k[Au{(CN)_2}]$
c
(c)For gold plating, the used electrolyte is $K\left[ {Au{{(CN)}_2}} \right]$.
(c)For gold plating, the used electrolyte is $K\left[ {Au{{(CN)}_2}} \right]$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Among the elements $Ca, Mg, P$ and $Cl,$ the order of increasing atomic radii is
→Correct configuration of the following molecule is
${\Delta _C}\,{U^o}$ of combustion of $CH_4(g)$ at certain temperature is $-100\,kJ/mol$. The value of ${\Delta _C}\,{H^o}$ is
→Which of the following have the same number of unpaired electrons in $‘d’$ orbitals
→Similarity in chemical properties of the atoms of elements in a group of the Periodic table is most closely related to
$2, 4$ -hexadiyne $(C_6H_6)$ is allowed to react with $Li $ in $NH_3 (liq)$. The product obtained is treated with $1$ equivalent of $Cl_2$ in $CCl_4$. Which of the following constitutional isomers are possible products ?
→Among the following which one has the highest cation to anion size ratio ?
In which of the following pairs of molecules/ions, both the species are not likely to exist?
Charge required to liberate $11.5\,g $ sodium is
→Silicon has $4$ electrons in the outermost orbit. In forming the bonds
→