Q. Which one of the following reaction does not form gaseous product?
A) $PbO_{2} + \ H_{2}O_{2}\ \rightarrow$
B) Acidified $\ KMnO_{4} + \ H_{2}O_{2}\ \rightarrow$
C) $PbS + H_{2}O_{2}\ \rightarrow$
D) $Cl_{2} + \ H_{2}O_{2}\ \rightarrow$
Explanation
(c)
Hydrogen peroxide oxidise lead sulphide into lead sulphate which is a solid.
$PbS + 4H_{2}O_{2}\ \rightarrow PbSO_{4} + \ 4H_{2}O$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.