Question

Ethylene may be obtained by dehydration of which of the following with concentrated $H_{2}SO_{4}$ at $160 - 170^{o}C$.

• A. $C_{2}H_{5}OH$
• B. $CH_{3}OH$
• C. $CH_{3}CH_{2}CH_{2}OH$
• D. $(CH_{3})_{2}CHCH_{2}OH$

Answer 1

Answer: (A)

$C_{2}H_{5}OH$

Answer 2

$CH_{3} - CH_{2} - OH\underset{160 - 170{^\circ}C}{\overset{\quad Conc.\mspace{6mu} H_{2}SO_{4}\quad}{\rightarrow}}CH_{2} = CH_{2} + H_{2}O$

($CH_{3} - CH_{2} - OH\underset{160 - 170{^\circ}C}{\overset{\quad lkUnz\mspace{6mu} H_{2}SO_{4}\quad}{\rightarrow}}CH_{2} = CH_{2} + H_{2}O$)