When $\mathrm{H}_{2} \mathrm{~S}$ gas is passed through a hot acidic aqueous solution containing $\mathrm{Al}^{3+}$ $\mathrm{Cu}^{2+}, \mathrm{Pb}^{2+}$ and $\mathrm{Ni}^{2+}$, a precipitate is formed which consists of

• A

  $\mathrm{CuS}$ and $\mathrm{Al}_{2} \mathrm{~S}_{3}$
• B

  PbS and NiS
• C

  CuS and NiS
• Correct answer
  D

  PbS and CuS

Hence, the correct answer is option: 'D'.