Question 1

What is the correct IUPAC name for the alkane shown in Image 1?

Accepted Answer

3,4-Dimethylhexane

Question 2

Which of the following is the correct IUPAC name for the alkane shown in Image 2?

Accepted Answer

Question 3

What is the IUPAC name for the compound shown in Image 3?

Accepted Answer

2,2,3,3,4,4-Hexamethyloctane

Question 4

Which of the following is the correct IUPAC name for the alkane shown in Image 4?

Accepted Answer

4-Ethyl-3,4-dimethyloctane

Question 5

What is the IUPAC name for the compound shown in Image 5?

Accepted Answer

2,2,4-Trimethylpentane

Question 6

Which of the following statements about the naming of branched alkanes is correct?

Accepted Answer

The longest continuous carbon chain is always chosen as the parent chain, even if it does not contain the most substituents.

Question 7

Given the structure of 2,2,4-trimethylpentane, which of the following is true about its boiling point compared to n-octane?

Accepted Answer

2,2,4-Trimethylpentane has a lower boiling point due to increased branching.

Question 8

Which of the following best describes the effect of branching on the boiling point of alkanes?

Accepted Answer

Branching decreases the boiling point by reducing surface area.

Question 9

Which of the following is the correct condensed structural formula for 3,4-dimethylnonane?

Accepted Answer

$$\mathrm{CH_3CH_2CH(CH_3$)CH(CH_3$)CH_2CH_2CH_2CH_3}$$

Question 10

Which of the following is the correct IUPAC name for a molecule with the structure $$\mathrm{CH_3CH_2CH(CH_3$)CH_2CH_3}$$?

Accepted Answer

3-Methylpentane

Step-by-Step Guidance for Naming Alkanes (IUPAC Nomenclature)

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