Question

Ethanol reacts with conc . H2SO4 at 443 K to form Ethene . This reaction is an example of *
a. Combustion reaction
b. Dehydration reaction
c. addition reaction
d. Substitution reaction​

Answer 1

Answer:

Ethanol can be dehydrated to give ethene by heating it with an excess of concentrated sulphuric acid at 170

0

C. The acid catalysts normally used in alcohol dehydration is concentrated sulphuric acid which results in alkene.

C

2

H

5

OH+conc.H

2

SO

4

→C

2

H

4

+H

2

O