Question

Complete the following table for the homologous series of alkanes.

Name	Molecular formula	Condensed structural formula	Number of carbon atom	Number of -CH2- units	Boiling point °C
Methane	CH4	CH4	1	1	-162
Ethane	C2H6	CH3–CH3	2	2	-88.5
Propane	C3H8	CH3–CH2–CH3	3	3	-42
Butane	C4H10	CH3–CH2–CH2–CH3	______	______	0
Pentane	C5H12	CH3–CH2–CH2–CH2–CH3	______	______	36
Hexane	C6H14	CH3–CH2–CH2–CH2–CH2–CH3	______	______	69

Answer 1

Name	Molecular formula	Condensed structural formula	Number of carbon atom	Number of -CH2- units	Boiling point °C
Methane	CH4	CH4	1	1	-162
Ethane	C2H6	CH3–CH3	2	2	-88.5
Propane	C3H8	CH3–CH2–CH3	3	3	-42
Butane	C4H10	CH3–CH2–CH2–CH3	4	4	0
Pentane	C5H12	CH3–CH2–CH2–CH2–CH3	5	5	36
Hexane	C6H14	CH3–CH2–CH2–CH2–CH2–CH3	6	6	69