(a) A basic oxide which is soluble in water,
(b) A hydroxide which is highly soluble in water,
(c) A basic oxide which is insoluble in water,
(d) A hydroxide which is insoluble in water,
(e) A weak mineral acid,
(f) A base which is not an alkali,
(g) An oxide which is a base,
(h) A hydrogen-containing compound which is not an acid,
(i) A base which does not contain a metal ion.
Answers:
(a) Example of a basic oxide which is soluble in water – Barium oxide (BaO)
(b) Example of a hydroxide which is highly soluble in water – Sodium hydroxide (NaOH)
(c) Example of a basic oxide which is insoluble in water – Manganese oxide (MnO)
(d) Example of a hydroxide which is insoluble in water – Copper hydroxide (Cu(OH)2)
(e) Example of a weak mineral acid – Carbonic acid (H2CO3)
(f) Example of a base which is not an alkali – Ferric hydroxide (Fe(OH)3)
(g) Example of an oxide which is a base – Copper oxide (CuO)
(h) Example of a hydrogen-containing compound which is not an acid – Ammonia (NH3)
(i) Example of a base which does not contain a metal ion – Ammonium hydroxide (NH4OH)