Ethanol is prepared industrially by - Vidyadip

MCQ

Ethanol is prepared industrially by

A
Hydration of ethylene
B
Fermentation of sugars
✓
Both the above
D
None of these

✓

Answer

Correct option: C.

Both the above

c
(c) Hydration of alkenes

$C{H_2} = C{H_2} + \mathop {{\text{ }}H}\limits^ + S{\mathop O\limits^ - _4} \to C{H_3} - C{H_2} - HS{O_4}$

$C{H_3} - C{H_2}HS{O_4}\mathop {\xrightarrow{{{H_2}O}}}\limits_{Boil} C{H_3} - C{H_2} - OH + {H_2}S{O_4}$

Fermentation of sugars:

${C_{12}}{H_{22}}{O_{11}} + {H_2}O\xrightarrow{{{\text{Invertase}}}}\mathop {{C_6}{H_{12}}{O_6}}\limits_{{\text{Glucose}}} + \mathop {{C_6}{H_{12}}{O_6}}\limits_{{\text{Fructose}}} $

$\mathop {{C_6}{H_{12}}{O_6}}\limits_{{\text{Glucose}}\,\,{\text{or}}\,{\text{Fructose}}} \xrightarrow{{{\text{Zymase}}}}\,2{C_2}{H_5}OH + 2C{O_2}$

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