Give one example of. (i) heavy chemicals, (ii) fine chemicals

Give one example of. (i) heavy chemicals, (ii) fine chemicals

Solution:

(i) Examples of heavy chemicals are:

Hydrogen tetraoxosulphate (VI) H2SO4

Sodium hydroxideNaOH

Ammonia NH3

Calcium trioxocarbonate (IV) CaCO3.

Note: These chemicals are called heavy chemicals because they are used extensively in industries and are produced in very large quantities.

(ii) Examples of fine chemicals are:

Bulk of laboratory reagents and additives.

Note: Chemicals and drugs produced in small quantities for specific purposes and to a very high degree of purity are called fine chemicals.

QUESTIONS SOURCE: WAEC THEORY QUESTION 1988 QUESTION 2 (a)(i) and 2(a)(ii)