Give one example in each case:
Give one example in each case:

(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)