1.

Ethanol is prepared industrially by

Answer»

HYDRATION of ethlene
fermentation of sugar
Both the above
None of these

Solution :Hydration of alkenes
`CH_(2)=CH_(2)+overset(+)(H)HS overset(-)(O)_(4) to CH_(3)-CH_(2)-HSO_(4) `
`CH_(3)-CH_(2)HSO_(4) UNDERSET("boil")overset(H_(2)O) to CH_(3)-CH_(2)-OH+H_(2)SO_(4)`
Fermentation of sugar:
`C_(12)H_(22)O_(11)+H_(2)O overset("inverlase") underset("glucose")(C_(6)H_(12)O_(6))+underset("Fructose")(C_(6)H_(12)O_(6))`
`underset("Glucose or fructose")(C_(6)H_(12)O_(6)) overset("Zymase") to 2C_(2)H_5OH+2CO_(2)`


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