Question

plz send me answer arrgently ​

Answer 1

Answer:

Ethene ( C2H4 )

Propene (C3H6 )

Butene (C4H8 )

Pentene (C5H10 )

hope this will helpful for you

Answer 2

Answer:

1. C2H4

2. C3H6

3. C4H8

4. C5H1

Explanation

As alkenes have double bond between the carbon atom so the atleast 2 carbons are needed to form double band . and general formula of alkenes is CnH2n so the first member is 2 carbon atom i.e C2H4

now for rest members add CH2 after every successive member obtained