Question

Which of the following nitrates decomposes on heating, giving the oxide ?
A. `Ba(NO_(3))_(2)`
B. `Sr(NO_(3))_(2)`
C. `Ca(NO_(3))_(2)`
D. All of these

Answer 1

Correct Answer - D
The nitrates of all group 2 elements on heating give the corresponding oxides:
`2M(NO_(3))_(2)overset(Delta)to2MO+4NO_(2)+O_(2)`
`M=Be,Mg,Ca,Sr,Ba`
Strontium and barium nitrates are used in pyrotechnics for giving red ad green flames.