Hydrocarbons that contoins least double bond are

Chemistry has taught that ;

Unsaturated hydrocarbon molecules that contain one or more double bonds are called alkenes.

Alkynes are  unsaturated hydrocarbons due to the fact that some of the carbons are connected to fewer than four neighbouring atoms.

Note : Alkenes contain at least one double bond, while alkynes contain at least one triple bond.

Explanation:

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

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