Question :
31.Which of the following a characteristic property of thiols?
a.extremely strong : 1309655
31.Which of the following is a characteristic property of thiols?
a.extremely strong odorsd.more than one correct response
b.abnormally high boiling pointse.no correct response
c.strong resistance to oxidation
32.Which of the following pairings of names and general formulas is incorrect?
a.dithiol and HS–R–SHd.more than one correct response
b.thioether and R–S–Re.no correct response
c.disulfide and R–S–S–R
33.Which of the following general types of compounds is always a heterocyclic compound?
a.a substituted phenol
b.a cyclic ether
c.a cyclic compound with both hydroxy and alkoxy substituents on the ring
d.more than one correct response
e.no correct response
34.Which of the following compounds contains two oxygen atoms?
a.1,3-dimethoxybenzened.more than one correct response
b.methoxycyclohexanee.no correct response
c.2-ethoxy-1-propanol
35.Which of the following compounds is not a constitutional isomer of 1-butanol?
a.diethyl etherd.more than one correct response
b.2-methyl-2-propanole.no correct response
c.2-methoxypropane
36.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Common names for alcohols have two words and IUPAC names for alcohols are only one word.
(2) Mild oxidizing agents readily oxidize tertiary alcohols.
(3) Cyclic ethers are examples of heterocyclic organic compounds.
a.All three statements are true.
b.Two of the three statements are true.
c.Only one of the statements is true.
d.None of the statements is true.
37.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Long-chain alcohols are generally more soluble in water than short-chain alcohols.
(2) The compound ethyl methyl ether contains two alkoxy groups.
(3) Rubbing alcohol is a 50-50 mixture by volume of isopropyl alcohol and water.
a.All three statements are true.
b.Two of the three statements are true.
c.Only one of the statements is true.
d.None of the statements is true.
38.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Glycerin, a three-carbon diol, has a great affinity for moisture (water vapor).
(2) Oxidation of a thiol produces a disulfide.
(3) MTBE is a water-soluble polymeric alcohol.
a.All three statements are true.
b.Two of the three statements are true.
c.Only one of the statements is true.
d.None of the statements is true.
39.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Denatured alcohol is ethyl alcohol that has been rendered unfit to drink.
(2) The functional group present in the compound 2-butanethiol is the sulfhydryl group.
(3) The simplest phenol, phenol itself, is a colorless solid with a medicinal odor.
a.All three statements are true.
b.Two of the three statements are true.
c.Only one of the statements is true.
d.None of the statements is true.
40.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Alcohols have higher boiling points than alkanes of similar molecular mass because of hydrogen bonding.
(2) Ethylene glycol contains two carbon atoms and two hydroxyl groups.
(3) Primary and secondary alcohols give the same type of product when subjected to mild oxidizing agents.
a.All three statements are true.
b.Two of the three statements are true.
c.Only one of the statements is true.
d.None of the statements is true.
