Q. Among the following nitrates, lead nitrate, silver nitrate, sodium nitrate and ammonium nitrate; the one that decomposes without leaving any solid residue is
A) Ammonium nitrate
B) Sodium nitrate
C) Silver nitrate
D) Lead nitrate
Explanation
(a)
$NH_{4}NO_{3}(s)\overset{\mathrm{\Delta}\ }{\rightarrow}\ 2H_{2}O \uparrow + N_{2}O \uparrow$
$NaNO_{3}(s)\overset{\mathrm{\Delta}}{\rightarrow}\ NaNO_{2} + O_{2} \uparrow$
$2AgNO_{3}(s)\overset{\mathrm{\Delta}}{\rightarrow}\ 2Ag(s) + 2NO_{2}(g) + O_{2}(g)$
$Lunar\ caustic$
$2Pb\left( NO_{3} \right)_{2} \rightarrow 2PbO + 4NO_{2} \uparrow + O_{2} \uparrow$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.