Question 1

Which of the following best describes the functional group present in thiols?

Accepted Answer

A hydrocarbon chain containing an $$-SH$$ group

Question 2

What is the correct IUPAC name for the compound with the structure $$CH_3CH_2CH_2SH$$?

Accepted Answer

1-Propanethiol

Question 3

Which of the following compounds is responsible for the strong odor in skunk spray and some cheeses?

Accepted Answer

Thiols

Question 4

Given the compound 3-methyl-1-pentanethiol, which of the following is the correct condensed structural formula?

Accepted Answer

$$CH_3CH_2CH(CH_3$)CH_2CH_2SH$$

Question 5

Which of the following is the correct name for the compound with the structure $$CH_3CH(SH)CH_2CH_3$$?

Accepted Answer

2-Butanethiol

Question 6

A compound has the formula $$C_4H_9SH. $$Which of the following is a possible IUPAC name for this compound?

Accepted Answer

1-Butanethiol

Question 7

Which of the following best explains why thiols often have strong, unpleasant odors?

Accepted Answer

The $$-SH$$ group interacts strongly with olfactory receptors

Question 8

What is the correct IUPAC name for the compound with the structure $$CH_3CH_2CH_2CH_2SH$$?

Accepted Answer

1-Butanethiol

Question 9

Which of the following is the correct name for a thiol with a chlorine substituent at carbon 2, a chlorine at carbon 3, a chlorine at carbon 4, and a thiol at carbon 1 on a pentane chain?

Accepted Answer

2,3,4-Trichloro-1-pentanethiol

Question 10

Which of the following best describes the difference between alcohols and thiols?

Accepted Answer

Alcohols contain an $$-OH$$ group, while thiols contain an $$-SH$$ group

Question 11

A compound is named 2-methyl-2-propanethiol. Which of the following is its correct condensed structural formula?

Accepted Answer

$$(CH_3$)_3CSH$$

Question 12

Which of the following is a correct IUPAC name for a thiol with three carbons and the $$-SH$$ group on the second carbon?

Accepted Answer

2-Propanethiol

Question 13

Which of the following best explains why onions cause eye irritation when cut?

Accepted Answer

Thiols are released as aerosols, which irritate the eyes

Question 14

What is the correct IUPAC name for the compound with the structure $$CH_3SH$$?

Accepted Answer

Methanethiol

Question 15

Which of the following is the correct name for a thiol with a methyl group at carbon 2 and a thiol group at carbon 1 on a butane chain?

Accepted Answer

2-Methyl-1-butanethiol

Question 16

Which of the following is a common alternative name for thiols, especially in industrial or biological contexts?

Accepted Answer

Mercaptans

Question 17

A compound is named 1-butanethiol. Which of the following is its correct condensed structural formula?

Accepted Answer

$$CH_3CH_2CH_2CH_2SH$$

Question 18

Which of the following best describes the correct approach to numbering the carbon chain when naming thiols?

Accepted Answer

Number from the end closest to the $$-SH$$ group

Question 19

Which of the following is the correct IUPAC name for a three-carbon chain with an $$-SH$$ group on the first carbon and a double bond between carbons 2 and 3?

Accepted Answer

Prop-2-ene-1-thiol

Thiols: Structure, Nomenclature, and Properties

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