Identify $\mathrm{A}, \mathrm{B}$ and C in the given below reaction sequence $\mathrm{A} \xrightarrow{\mathrm{HNO}_3} \mathrm{~Pb}\left(\mathrm{NO}_3\right)_2 \xrightarrow{\mathrm{H}_2 \mathrm{SO}_4}$ B $\xrightarrow[\substack{\text { (2) Acetic acid } \\ \text { (3) } \mathrm{K}_2 \mathrm{CrO}_4}]{\substack{\text { (1) Ammonium } \\ \text { acetate }}}$

• A

  $\mathrm{PbCl}_2, \mathrm{PbSO}_4, \mathrm{PbCrO}_4$
• B

  $\mathrm{PbS}, \mathrm{PbSO}_4, \mathrm{~Pb}\left(\mathrm{CH}_3 \mathrm{COO}\right)_2$
• C

  $\mathrm{PbCl}_2, \mathrm{~Pb}\left(\mathrm{SO}_4\right)_2, \mathrm{PbCrO}_4$
• Correct answer
  D

  $\mathrm{PbS}, \mathrm{PbSO}_4, \mathrm{PbCrO}_4$

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