2-Methylpentane, 3-ethylpentane and 2,3-dimethylbutane are alkanes.

a. For each one give:

i. Its molecular formula

ii. Its structural formula

iii. Its displayed formula

iv. Its skeletal formula.

b. Give the general formula that is used to represent alkanes.

c. Two of the alkanes in this question are isomers of each other. Identify which two and identify the type of isomerism they show.

d. Using terms from part a of this question, define isomers.

e. Name the alkane whose structural formula is CH₃CH(CH₃)CH₂CH(CH₃)₂