Question

A metal nitrate which on heating is changed into metal ?

Answer 1

A metal nitrate A on heating gives yellowish brown coloured metal oxide along with brown gas B and a colourless gas C. Aqueous solution of A on reaction with potassium iodide forms a yellowish precipit

Answer 2

Hello buddy,

● Answer -
Silver nitrate gives silver metal on heating.

● Explaination -
Silver nitrate on heating (thermal decomposition) gives silver metal alongwith NO2 & O2 gas.
2AgNO3 + ∆ → 2Ag + 2NO2 + O2

# Various nitrates give different products on thermal decomposition.
2NaNO3 + ∆ → 2NaNO2 + O2
CaNO3 + ∆ → CaO + NO2
2NH4NO3 + ∆ → N2 + O2 + 4H2O

Hope that cleared you query.
Thanks for asking.