Question

Write all the possible chain and position isomers of the compounds having formula C₅H₁₁Cl. Write their IUPAC names and identify them as 1°, 2° and 3° halides.

Answer 1

	Formula	IUPAC name	1°, 2° and 3° halide
1.	\[\ce{CH3 – CH2 – CH2 – CH2 – CH2 – Cl}\]	1-chloropentane	1° (Primary) halide
2.	\[\begin{array}{cc} \ce{CH3 - CH2 - CH2 - CH - CH3}\\ \phantom{.............}|\\ \phantom{..............}\ce{Cl} \end{array}\]	2-chloropentane	2° (Secondary) halide
3.	\[\begin{array}{cc}\ce{CH3 - CH2 - CH - CH2 - CH3}\\|\phantom{..}\\\ce{Cl}\end{array}\]	3-chloropentane	2° (Secondary) halide
4.	\[\begin{array}{cc}\ce{CH3}\phantom{...}\\ |\phantom{......}\\\ce{CH3 - C - CH2 - Cl}\\ |\phantom{......}\\\ce{CH3}\phantom{....} \end{array}\]	1-chloro-2, 2-dimethylpropane	1° (Primary) halide
5.	\[\begin{array}{cc}\ce{CH3 - CH - CH2 - CH2 - Cl}\\|\phantom{..............}\\\ce{CH3}\phantom{...........}\end{array}\]	1-chloro-3-methylbutane	1° (Primary) halide
6.	\[\begin{array}{cc}\ce{CH3 - CH - CH - CH3}\\ |\phantom{......}|\phantom{..}\\\ce{CH3}\phantom{...}\ce{Cl}\phantom{..}\end{array}\]	2-chloro-3-methylbutane	2° (Secondary) halide
7.	\[\begin{array}{cc}\ce{CH3}\phantom{......}\\ |\phantom{.........}\\\ce{CH3 - CH - CH2 - CH3}\\ |\phantom{.........}\\\ce{Cl}\phantom{........} \end{array}\]	2-chloro-2-methylbutane	3° (Tertiary) halide
8.	\[\begin{array}{cc}\ce{CH3 - CH2 - CH - CH2 - Cl}\\|\\\phantom{...}\ce{CH3}\end{array}\]	1-chloro-2-methylbutane	1° (Primary) halide