Which of the following substances will leave a black residue on strong heating?

CHEMISTRY · Single correct · CBSE · Chemistry · Chemical Reactions and Equations · Chemical Reactions and Equations

Problem

Which of the following substances will leave a black residue on strong heating? (1)

\text{CuSO}_4 \cdot 5\text{H}_2\text{O}

(2)

\text{ZnCO}_3

(3)

\text{PbCO}_3

(4)

\text{MnSO}_4