Among the following oxides how many of them are suboxides ?
(a) `C_(3)O_(2)` , (b) `N_(2)O` , (c ) `NO_(2)` , (d) `CO`
(e) `Fe_(3)O_(4)` , (f) `KO_(2)`

Among the following oxides, how many of them are amphoteric oxides ? (a) B_(2)O_(3) , (b) Al_(2)O_(3) , (c ) CaO , (d) ZnO (e) Ga_(2)O_(3) , (f) SnO_(2) , (g) PbO_(2) , (h) BeO (i) CuO , (j) Fe_(2)O_(3)

Among the following oxides, how many of them are amphoteric oxides ? (a) B_(2)O_(3) , (b) Al_(2)O_(3) , (c ) CaO , (d) ZnO (e) Ga_(2)O_(3) , (f) SnO_(2) , (g) PbO_(2) , (h) BeO (i) CuO , (j) Fe_(2)O_(3)

Among the following oxides how many of them are mixed oxides ? (a) H_(2)O , (b) C_(3)O_(2) , (c ) Fe_(3)O_(4) , (d) Fe_(2)O_(3) (e) Pb_(3)O_(4) , (f) PbO_(2) , (g) Co(AlO_(2))_(2) , (h) Mn_(3)O_(4)

Among the following oxides, how many of them are amphoteric oxides? {:((a)B_(2)O_(3),(b)AL_(2)O_(3),(c)CaO,(d)ZnO),((e)Ga_(2)O(3),(f)SnO_(2),(g)PbO_(2),(h)BeO),((i)CuO,(j)Fe_(2)O_(3),,):}

Carbon suboxide (C_(3)O_(2))

Carbon suboxide (C_(3)O_(2))

Out of the following oxides of nitrogen how many of them are neutral oxides? N_(2)O, NO, N_(2)O_(3), NO_(2),N_(2)O_(4), N_(2)O_(5)

The correct order of following 3d metal oxides, according to their oxidation numbers is : (a) CrO_(3), (b) Fe_(2) O_(3), (c) Mn O_(2), (d) V_(2) O_(5), (e) Cu_(2) O

Number of gaseous oxides among the following at room temperature is: (a) N_(2)O (b) NO (c) N_(2)O_(3) (d) NO_(2) (e) N_(2)O_(5) (f) P_(4)O_(6) (g) P_(4)O_(10) (h) SO_(2) (i) SO_(3)