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1988 WAEC Chemistry Theory  (a) Give one example of; (i) heavy chemicals (ii) fine chemicals (b) Write the structural...

Chemistry
WAEC 1988

 (a) Give one example of;

(i) heavy chemicals

(ii) fine chemicals

(b) Write the structural formulae and the names of compounds having the formula CH\(_4\)CI,

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Explanation

(a)(i) An example of heavy chemical is tetraoxosulphate(VI) acid (H\(_2\)SO\(_4\)). It is said to be heavy because. it is essential in almost all branches of industry.

(ii) Fine chemicals are manufactured for specific industrial and domestic purposes and are of high purity and expensive e.g. Additives for fuels.

(b)(i)

Molecular formula

 Structural formulae

Names


C\(_2\)H\(_4\)Cl\(_2\)

CICH\(_2\)CH\(_2\)Cl

CH\(_3\)CHCl\(_2\)

1,2-dichloroethane

1,1-dichloroethane






 

 

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