Question

Which one of the following reactions will occur on heating $ AgN{{O}_{3}} $ above its melting point?

• A. $ 2AgN{{O}_{3}}\xrightarrow[{}]{{}}2Ag+2N{{O}_{2}}+{{O}_{2}} $
• B. $ 2AgN{{O}_{3}}\xrightarrow[{}]{{}}2Ag+{{N}_{2}}+3{{O}_{2}} $
• C. $ 2AgN{{O}_{3}}\xrightarrow[{}]{{}}2AgN{{O}_{2}}+{{O}_{2}} $
• D. $ 2AgN{{O}_{3}}\xrightarrow[{}]{{}}2Ag+2NO+2{{O}_{2}} $
• E. $ 2AgN{{O}_{3}}\xrightarrow[{}]{{}}A{{g}_{2}}O+{{N}_{2}}{{O}_{3}}+{{O}_{2}} $

Answer 1

Answer: (C)

Silver nitrate decomposes to silver nitrite on heating above its melting point
$ (212{}^\circ C) $ . $ 2AgN{{O}_{3}}\xrightarrow[{}]{>212{}^\circ C}2AgN{{O}_{2}}+{{O}_{2}} $
On heating above $ 450{}^\circ C $ (red hot), silver nitrate decomposes to metallic silver, oxide of nitrogen and oxygen.
$ 2AgN{{O}_{3}}\xrightarrow{>450{}^\circ C}2Ag+2N{{O}_{2}}+{{O}_{2}} $