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)`

Number of acidic oxides among the following is: (a) N_(2)O (b) NO (c) N_(2)O_(3) (d) N_(2)O_(4) (e) N_(2)O_(5) (f) P_(4)O_(6) (g) P_(4)O_(10) (h) SO_(3) (i) B_(2)O_(3) (j) CO

Number of acidic oxides among the following is: (a) N_(2)O (b) NO (c) N_(2)O_(3) (d) N_(2)O_(4) (e) N_(2)O_(5) (f) P_(4)O_(6) (g) P_(4)O_(10) (h) SO_(3) (i) B_(2)O_(3) (j) CO

Number of acids having central atom in +3 oxidation state among the following is (a) HNO_(2) (b) HNO_(3) (c) H_(3)PO_(2) (d) H_(3)PO_(3) (e) H_(3)PO_(4) (f) H_(4)P_(2)O_(5) (g) H_(4)P_(2)O_(7) (h) H_(2)SO_(3) (i) H_(2)S_(2)O_(7) (j) H_(2)S_(2)O_(8) (k) H_(2)SO_(4)

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 suboxides ? (a) C_(3)O_(2) , (b) N_(2)O , (c ) NO_(2) , (d) CO (e) Fe_(3)O_(4) , (f) KO_(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)

Among the following, cyclic species are: (I) H_(5)P_(3)O_(10) (II) [B_(3)O_(3)(OH)_(5)]^(2-) (III) H_(5)P_(5)O_(15) (IV) P_(3)N_(3)Cl_(6)

Among the following, cyclic species are: (I) H_(5)P_(3)O_(10) (II) [B_(3)O_(3)(OH)_(5)]^(2-) (III) H_(5)P_(5)O_(15) (IV) P_(3)N_(3)Cl_(6)