How many of the following will give `O_(2)` on heating ?
`KMnO_(4),K_(2)Cr_(2)O_(7),ZnO,Na_(2)O,`
`PbO_(2),Pb_(3)O_(4),Pb(NO_(3))_(2),NH_(4)NO_(3)`

How many of the following will give O_2 on heating ? KMnO_4, K_2,Cr_2O_7, ZnO,Na_2O, PbO_2,Pb_3O_4,Pb(NO_3)_2 , NH_4NO_3

How many of the following compounds will liberate NH_(3) on heating? (NH_(4))_(2)SO_(4),(NH_(4))_(2)CO_(3),NH_(4)Cl,NH_(4)NO_(3),(NH_(4))_(2)Cr_(2)O_(7)

How many of the following compounds gives nitrogen on heating NH_(4) Cl, (NH)_2 Cr_(2)O_(7),Ba_(3)N_(2),NH_(4)OH,NH_(4)NO_3

How many following ammonium salts will evolve NH_(3) gas on heating? (NH_(4))_(2)CO_(3),(NH_(4))_(2)Cr_(2)O_(7),CH_(3)COONH_(4),NH_(4)ClO_(4),NH_(4)Cl,(NH_(4))_(2)S,(NH_(4))_(2)C_(2)O_(4),(NH_(4))_(2)SO_(4),NH_(4)NO_(3)

How many following ammonium salts will evolve NH_(3) gas on heating? (NH_(4))_(2)CO_(3),(NH_(4))_(2)Cr_(2)O_(7),CH_(3)COONH_(4),NH_(4)ClO_(4),NH_(4)Cl,(NH_(4))_(2)S,(NH_(4))_(2)C_(2)O_(4),(NH_(4))_(2)SO_(4),NH_(4)NO_(3)

PbO_(2)+HNO_(3)("Conc.") to Pb(NO_(3))_(2)+H_(2)O+[O]

PbO_(2)↓+HNO_(3)("Conc.") to Pb(NO_(3))_(2)+H_(2)O+[O]