4. Alkanes and Cycloalkanes

Classify each hydrogen atom in the following compounds as primary (1°), secondary (2°), or tertiary (3°).

c. 2-methylbutane

d. cyclohexane

Classify each hydrogen atom in the following compounds as primary (1°), secondary (2°), or tertiary (3°).

e. norbornane (bicyclo[2.2.1]heptane)

Label each hydrogen atom in the following compounds as primary (1°), secondary (2°), or tertiary (3°).

(c) (CH₃)₂CHCH(CH₃)CH₂CH₃

(d)

Label each hydrogen atom in the following compounds as primary (1°), secondary (2°), or tertiary (3°).

(e)

(f)

Correct the following incorrect names using standard IUPAC nomenclature. [Draw a compound that corresponds to the incorrect name, and then rename it.]

(e) 2,6-diethyl-1-methylcycloheptane

Each of the following descriptions applies to more than one alkane. In each case, draw and name two structures that match the description.

e. a (2,3-dimethylpentyl)cycloalkane

Draw the structure and give the molecular formula for each of the following compounds.

e. 3-ethyl-2,4-dimethylhexane

f. 1,1-diethyl-4-(3,3-dimethylbutyl)cyclohexane

Draw the structure and give the molecular formula for each of the following compounds.

c. cyclopropylcyclopentane

d. 3-ethyl-1,1-dimethylcyclohexane

Draw skeletal structures for the following:

d. propylcyclopentane

Draw skeletal structures for the following:

c. 2,3,3,4-tetramethylheptane

Draw the structure that corresponds with each name.

e. 2,2,4,4-tetramethylhexane

f. trans-1,3-diethylcyclopentane

Draw skeletal structures for the following:

b. 1,3-dimethylcyclohexane

Draw skeletal structures for the following:

a. 5-ethyl-2-methyloctane

What is each compound's systematic name?

e.

f.

Draw all the isomers with molecular formula C₆H₁₂ that contain a cyclobutane ring.