Q 2002123038.     Mr. Mittal an owner of aluminium plant found
that in nearby area clay (`AI_2O_3 . 2SiO_2 . 2H_2O`) is
available in plenty. Thus he instructed his
employees to use clay for extraction of
aluminium. Mr. Mittal noticed that use of clay
increases total cost of extraction process. Then
Naveen, a senior engineer of company went to
Mr. Mittal and advised him to use bauxite
(`Al2O_3 . xH_2O`) for extraction of aluminium with
suitable reasons.
(a) What values are displayed by Naveen?
(b) What is difference between ore and mineral?
(c) Give two important ores of Ag?