Question

Among the following nitrates, Lead nitrate, Silver nitrate and Ammonium nitrate; the one that decomposes without leaving any solid residue is.

• A. Lead nitrate
• B. Ammonium nitrate
• C. Silver nitrate
• D. Sodium nitrate

Answer 1

Answer: (B)

Ammonium nitrate

Answer 2

$\underset{(s)}{NH_{4}NO_{3}}\overset{\quad\Delta\quad}{\rightarrow}2H_{2}O \uparrow + N_{2}O \uparrow$

$\underset{(s)}{NaNO_{3}}\overset{\quad\Delta\quad}{\rightarrow}\underset{(s)}{NaNO_{2}} + O_{2} \uparrow$

$\underset{\text{Lunar caustic}}{2AgNO_{3}(s)} \rightarrow 2Ag(s) + 2NO_{2}(g) + O_{2}(g)$

$2Pb(NO_{3})_{2} \rightarrow \underset{(s)}{2PbO} + 4NO_{2} \uparrow + O_{2} \uparrow$