Question

a) Complete and balance the following chemical equations:

(i) P4O10 + PCl→

(ii) SnCl4 + C2H5Cl + Na →

b) Work out the following using chemical equations:

i) In moist air, copper corrodes to produce a green layer on the surface

ii) Chlorination of calcium hydroxide produces bleaching power.

Answer 1

a) i) P4O10 + 6PCl5 →10POCl3

ii) SnCl4 + 2C2 H5 Cl + 2Na →Na2 SnCl6 C4 H10

b) i) 2Cu + H2O + CO2 + O2 → CuCO3. Cu(OH)2

ii) 3Ca (OH)2 + 2Cl →CaOCl2 + CaCl2 2HO. Ca(OH)2