Chooses the most appropriate answer for the following:

 Identify the statement which does not describe the property of alkenes:

A)  They are unsaturated hydrocarbon

B)   They decolourise bromine water.

C)   They can undergo addition as well as substitution reactions.

D)   They undergo combustion with oxygen forming carbon dioxide and water.

State one relevant observation for the following:

When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.

Given balanced chemical equations for the following conversion:

Ethanoic acid to ethyl ethanoate

Given balanced chemical equations for the following conversion

Calcium carbide to ethyne