Question

Alkenes,Molecular formula and names e.g. Ethene as C2H4

Answer 1

IUPAC Name

Molecular Formula

Condensed Structural Formula

Melting Point (°C)

Boiling Point (°C)

ethene

C2H4

CH2=CH2

–169

–104

propene

C3H6

CH2=CHCH3

–185

–47

1-butene

C4H8

CH2=CHCH2CH3

–185

–6

1-pentene

C5H10

CH2=CH(CH2)2CH3

–138

30

1-hexene

C6H12

CH2=CH(CH2)3CH3

–140

63

1-heptene

C7H14

CH2=CH(CH2)4CH3

–119

94

1-octene

C8H16

CH2=CH(CH2)5CH3
hope it's help you

Answer 2

Ethene=> C2H4

Propene => C3H6

1-butene=> C4H8

1-pentene=> C5H10

1-hexene=> C6H12

1-heptene=> C7H14

1-octene=> C8H16