Question

Alkenes undergo addition reaction:b)Ethene reacts with hydrogen. Give the name and structural formula of the product .​

Answer 1

Ethene react with hydrogen , ethane is formed..

Reaction: C2H4 + H2 ------> C2H6

Ethene Hydrogen Ethane

Answer 2

$\huge \underline{ \underline{ \bf{ANSWER}}}$


$\underline{ \bf{ADDITION \: \: REACTION : }}$

The reaction in which two molecules react to form a single product are called addition reaction.

Unsaturated compound such as alkenes contains double bonds between carbon atoms . Because of the present of double bond , they undergo addition reaction.


$\bf{Example : }$

Addition of Hydrogen.

Hydrogen reacts with ethene in the presence of Nickel catalyst to form ethane. This reaction is called Hydrogenation. It converts alkenes into alkanes.


$\underline{ \bf{Reaction \: \: Involved : }}$

Ethene + Hydrogen --------> Ethane.

$\bf { \: C_{2}H_{4} + H_{2} ----> C_{2}H_{6}}$