Question

Name the following:
1.H3C-CH=CH-CH3
HC=C-CH3

Answer 1

But - 2 - ene

prop - 1 - ene or propene

Answer 2

Answer:

As there is 7 carbons the common name is hept.

as triple bond comes on 2nd carbon from the left we should take the serials from left to right,

there is also a double bond on 5th carbon.

therefore the name is

Hept 5 ene 2 yne

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