Alcohol, Ethers, Thiols, And Phenols

Question 1

Phenols

Answer 1

-OH group attached to a benzen ring = phenols

Question 2

What organic compounds have boilingpoint similar to that of alkanes?

Answer 2

Ethers

Question 3

Ethers solubility:

Answer 3

They are slightly soluble in water , but they mix well with other non-polar molecules such as alkanes

Question 4

Thiol

Answer 4

• Functional group: SH (thiol group or sulfhydryl group)
• the bond between S and H is called is called sulfur-hydrogen bond
• they have similar molecular structures as those of alcohol

Question 5

Thiols = ?

Answer 5

Mercaptans

Question 6

What organic compounds smells like garlic?

Answer 6

Thiol

Question 7

What is the main odour constituent?

Answer 7

T-butyl mercaptan

Question 8

Poisoning of thiols?

Answer 8

Precipitation of these enzymes or protiens containing -SH groups by heavy metal ions such as hg+ causes these compounds to be poisonous

Question 9

Methyl phenols = ?

Answer 9

Cresols

Question 10

How are phenols converted to ethers?

Answer 10

Williamsons synthesis

Question 11

Polyhydric alcohols

Answer 11

Contain more than one -OH group in the molecule.

• e.g saccharides
• e.g ethane-1,2-diol

Question 12

Give examples of two alcohol isomers:

Answer 12

Propan-1-ol and propane-2-ol are isomers