Alcohols Phenols And Ethers Question 169
Question: Ethanol is prepared industrially by
[MP PMT 1989]
Options:
A) Hydration of ethylene
B) Fermentation of sugars
C) Both the above
D) None of these
Show Answer
Answer:
Correct Answer: C
Solution:
Hydration of alkenes $ CH_2=CH_2+\overset{+}{\mathop{H}}HS{{\overset{-}{\mathop{O}}}_4}\to CH_3-CH_2-HSO_4 $
$ CH_3-CH_2HSO_4\underset{Boil}{\mathop{\xrightarrow{H_2O}}}CH_3-CH_2-OH+H_2SO_4 $ Fermentation of sugars: $ C _{12}H _{22}O _{11}+H_2O\xrightarrow{Invertase}\underset{Glucose}{\mathop{C_6H _{12}O_6}}+\underset{Fructose}{\mathop{C_6H _{12}O_6}} $
$ \underset{GlucoseorFructose}{\mathop{C_6H _{12}O_6}}\xrightarrow{Zymase}2C_2H_5OH+2CO_2 $
BETA
