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1991 WAEC Chemistry Theory (a) Name the industrial process by which ethene is obtained from petroleum fractions (b) Give...

Chemistry
WAEC 1991

(a) Name the industrial process by which ethene is obtained from petroleum fractions

(b) Give the I. U. P.A.C name of the isomer whose structure is shown below.

(c) Illustrate with an equation, one reaction in which benzene behaves as:

(i) unsaturated hydrocarbon

(ii) a saturated hydrocarbon

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Explanation

(a) The cracking process

(b) trans-1,2-dichloroethene

(c)(i) C\(_6\)H\(_6\) + 3H\(_{2(g)}\) --> C\(_6\)H\(_{14(l)}\)

(ii) \(C_6H_6 + C_{12(g)} \to C_6H_5Cl + HCl_{(g)}\)

 


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