Write the name and general formula of a chain of hydrocarbons in which, an addition reaction with hydrogen can take place

Write the name and general formula of a chain of hydrocarbons in which, an addition reaction with hydrogen can take place. Stating the essential conditions required for an addition reaction to occur, write the chemical equation giving the name of the reactant and the product of such a reaction.

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2.Essential condition: The Hydrocarbon molecule must contain double or triple bond.

3.Chemical equation:

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