Chemistry
Name three (i) sulphates (ii) chlorides insoluble in water and two (i) oxides (ii) carbonates soluble in water.
Answer
Insoluble in Water
(i) Three sulphates insoluble in water are:
- Lead sulphate (PbSO4)
- Calcium sulphate (CaSO4)
- Barium sulphate (BaSO4).
(ii) Three chloride insoluble in water are:
- Silver chloride (AgCl)
- Lead chloride (PbCl2)
- Mercury chloride (Hg2Cl2).
Soluble in Water
(i) Two oxides soluble in water are:
- Sodium oxide (Na2O)
- Potassium oxide (K2O)
(ii) Two carbonates soluble in water are:
- Sodium carbonate (Na2CO3)
- Ammonium carbonate [(Na4)2CO3]
Related Questions
Give balanced equations for the preparation of the following salts –
(a) (i) CuSO4
(ii) NaHSO4
(iii) Na2SO4
(iv) FeSO4
(v) BaSO4
(vi) PbSO4 — using dil. H2SO4
(b) (i) NaHSO4
(ii) CuSO4 — using conc. H2SO4
State (i) the formation (ii) the components of – a basic salt.
State which of following salts is an – acid, normal or basic salt.
(i) bleaching powder
(ii) potassium mercuric iodide
(iii) sodium sulphite
(iv) sodium hydrogen sulphite
(v) sodium silver cyanide
(vi) basic lead nitrate
(vii) potassium zincate
(viii) alum
(ix) calcium bicarbonate
(x) basic copper chloride
(xi) trisodium phosphate.
Define (i) salt (ii) normal salt (iii) acid salt – with relevant examples and equations.
State the method only, generally used for the preparation of the following salts
(i) Zn(NO3)2
(ii) NH4Cl
(iii) ZnSO4
(iv) ZnS
(v) CaCO3
(vi) FeCl3
(vii) PbCl2
(viii) Pb(NO3)2