a) Match the items of Column I with hems of Column II. i) Aluminium ii) Iron iii) Copper iv) Zinc

Question

a) Match the items of Column I with hems of Column II.

Column I	Column II
i) Aluminium	a) malachite
ii) Iron	b) Bauxite
iii) Copper	c) Limestone
iv) Zinc	d) Haematite
	e) Calamine

b) The reduction of the metal oxide is easier if the metal formed is in liquid state, at the temperature of reduction. Give reason.

Answer 1

a) 

Column I	Column II
i) Aluminium	Bauxite
ii) Iron	Haematite
iii) Copper	Malachite
iv) Zinc	Calamine

 

b) The entropy ¡s higher if the metal is in liquid state than when it is in solid state. So the value of entropy change or the reduction process will be more positive. Thus, the value of AGe becomes more negative and the reduction becomes easier.