Choose the correct option for which is not the structure of C4H9Br: i) 1-Bromobutane ii) 2-Bromobutane iii) 1-Bromo-2-methylpropane iv) Isobutane

The correct option for which is not the structure of C4H9Br: iv) Isobutane

Bromobutane

Bromobutane appears as a clear colourless liquid. Flash point 65°F. Denser than water and insoluble in water. Vapours heavier than air.

There are four structural isomers that are possible for C₄H₉Br. They are as follows:

• 1-Bromobutane (CH₃CH₂CH₂CH₂Br)
• 2-Bromobutane (CH₃CH₂CHBrCH₃)
• tert-Butyl bromide or 2-Bromo-2-methylpropane ((CH₃)₃CBr)
• 1-Bromo-2-methylpropane ((CH₃)₂CHCH₂CH₂Br)