Unit 11: Alcohols, Phenols and Ethers

41. The reaction of phenol with chloroform and a base is used to test for:

a) The presence of alcohols
b) The presence of phenols
c) The presence of aldehydes
d) The presence of ketones
Answer: b) The presence of phenols

42. Which alcohol can be converted into a carboxylic acid by oxidation?

a) Methanol
b) Ethanol
c) Propanol
d) None of the above
Answer: d) None of the above (methanol converts to formaldehyde and then to formic acid, ethanol to acetaldehyde and then to acetic acid, propanol to acetone)

43. Which compound is used as a solvent and is found in many cleaning products?

a) Methanol
b) Ethanol
c) Isopropanol
d) Butanol
Answer: c) Isopropanol

44. In the reaction of an alcohol with a carboxylic acid, the product is an:

a) Ether
b) Ester
c) Aldehyde
d) Ketone
Answer: b) Ester

45. Phenol is classified as:

a) An alcohol
b) A ketone
c) An aromatic compound
d) An ester
Answer: c) An aromatic compound

46. Which of the following statements about ethers is correct?

a) Ethers are generally very reactive
b) Ethers have a high boiling point
c) Ethers are commonly used as solvents
d) Ethers react readily with oxidizing agents
Answer: c) Ethers are commonly used as solvents

47. The product of the reaction between an alcohol and sulfuric acid is:

a) An ether
b) An ester
c) An alkene
d) An aldehyde
Answer: c) An alkene

48. Which of the following is the simplest ether?

a) Dimethyl ether
b) Diethyl ether
c) Dipropyl ether
d) Methyl ethyl ether
Answer: a) Dimethyl ether

49. Which alcohol is commonly used in the manufacture of drugs and cosmetics?

a) Methanol
b) Ethanol
c) Glycerol
d) Butanol
Answer: c) Glycerol

50. The process of forming phenol from benzene involves:

a) Chlorination
b) Nitration
c) Sulfonation
d) Hydroxylation
Answer: d) Hydroxylation