Chemistry 7.2.4

Question 1

What Functional Group do all Alcohols contain?

Answer 1

-OH.

Question 2

What is the General Formula for the Homologous Series of Alcohols?

Answer 2

CnH2n+1OH

Question 3

Name the first four Alcohols: (4)

Answer 3

-Methanol.
-Ethanol.
-Propanol.
-Butanol.

Question 4

How is Ethanol Produced? (2)

Answer 4

-Produced by Fermentation, where Sugar or Starch is Dissolved in Water, & Yeast is added.

-The Mixture is then Fermented between 15’C and 35’C with the Absence of Oxygen for a few days.

Question 5

What is Produced from the Anaerobic Respiration (Fermentation) of Yeast? (2)

Answer 5

-Ethanol.
-Carbon Dioxide.

Question 6

The Production of Ethanol by Fermentation is a ___ Process.

Answer 6

Batch.

Question 7

Alcohols undergo ___ to form Carbon Dioxide & Water.

Answer 7

Combustion.

Question 8

What can Alcohols React with to Produce Hydrogen Gas & a Metal Salt?

Answer 8

Sodium Metal.

Question 9

Word Equation for the Reaction of Methanol with Sodium:

Answer 9

Sodium + Methanol —–> Sodium Methoxide + Hydrogen

Question 10

What do Alcohols Produce when they Oxidise?

Answer 10

Carboxylic Acids.

Question 11

Ethanol + Sodium —–> …

Answer 11

Sodium Ethoxide + Hydrogen