Question 1

Which method is used for the systematic naming of organic compounds?

Accepted Answer

IUPAC method

Question 2

What is the correct IUPAC name for the alkane with the molecular formula $$C_4H_{10}$$?

Accepted Answer

Butane

Question 3

Alkane names are based on the number of which type of atom in the molecule?

Accepted Answer

Carbon atoms

Question 4

What is the prefix used for an alkane with 6 carbon atoms?

Accepted Answer

Hex-

Question 5

Given the following structure, what is its IUPAC name?

$$CH_3$$-$$CH_2$$-$$CH_2$$-$$CH_3$$

Accepted Answer

Butane

Question 6

Which of the following is the correct skeletal structure for nonane?

Accepted Answer

A straight chain of 9 carbon atoms

Question 7

What is the general formula for alkanes?

Accepted Answer

$$C_nH_{2n+2}$$

Question 8

If an alkane has the prefix 'pent-', how many carbon atoms does it contain?

Accepted Answer

5

Question 9

Which of the following is the correct IUPAC name for the alkane with the formula $$C_6H_{14}$$?

Accepted Answer

Hexane

Question 10

A patient is exposed to a hydrocarbon with the formula $$C_7H_{16}. $$What is the name of this compound?

Accepted Answer

Heptane

Question 11

Which of the following statements about alkane nomenclature is correct?

Accepted Answer

The base name is determined by the longest continuous chain of carbon atoms.

Question 12

What is the IUPAC name for the following structure?

$$CH_3$$-$$CH_2$$-$$CH_2$$-$$CH_2$$-$$CH_3$$

Accepted Answer

Pentane

Question 13

Which alkane would be used as a reference fuel in engine testing due to its high octane rating?

Accepted Answer

Octane

Question 14

If a molecule is named 'ethane', how many hydrogen atoms does it contain?

Accepted Answer

6

Question 15

Which of the following is the correct condensed structural formula for hexane?

Accepted Answer

$$CH_3$$($$CH_2)_4CH_3$

Question 16

A student draws a skeletal structure with 8 carbon atoms in a straight chain. What is the IUPAC name for this alkane?

Accepted Answer

Octane

Question 17

Which prefix is used for an alkane with 3 carbon atoms?

Accepted Answer

Prop-

Question 18

What is the molecular formula for butane?

Accepted Answer

$$C_4H_{10}$$

Question 19

Which of the following is NOT a correct alkane prefix?

Accepted Answer

Tet-

Question 20

A hydrocarbon is found to have the formula $$C_5H_{12}. $$What is its IUPAC name?

Accepted Answer

Pentane

Naming and Structure of Alkanes in Organic Chemistry

Study Guide - Practice Questions