Question

A metal nitrate gives ${\text{NO}}_2\text{and}{\text{O}}_2$ on simple heating. This metal nitrate is:

• A. ${\text{P(NO}}_3{)}_2$
• B. ${\text{NaNO}}_3$
• C. ${\text{AgNO}}_3$
• D. ${\text{Cu(NO}}_3{)}_2$

Answer 1

The correct option is C ${\text{AgNO}}_3$

Silver nitrate decomposes to form silver, nitrogen dioxide and oxygen in the presence of heat as follows:

$2{\text{AgNO}}_3\left(l\right)\stackrel{\text{Heat}}{⟶}2\text{Ag}\left(s\right)+{\text{O}}_2\left(g\right)+2{\text{NO}}_2\left(g\right)$

The above reaction is a decomposition reaction.