Question

How many chain isomers are possible for the alkane $C_6{H}_{14}$?

• A. six
• B. five
• C. four
• D. nine

Answer 1

Answer: (B)

five

$C-C-C-C-C-C$ n-hexane

$C-\underset{C}{\underset{|}{C}}-C-C-C$ 2-methylpentane

$C-C-\underset{C}{\underset{|}{C}}-C-C$ 3-methylpentane

$C-\stackrel{C}{\stackrel{|}{\underset{C}{\underset{|}{C}}}}-C-C$ 2,2-dimethylbutane

$C-\underset{C}{\underset{|}{C}}-\underset{C}{\underset{|}{C}}-C$ 2,3-dimethylbutane