Question

C2H4+H2 in the presence of Ni

Answer 1

it will become 


         

                                (CATALIST) NI
           C2H4+H2---------------------------------->  C2H6

Answer 2

Answer:Ethane will be obtained.

Explanation:

Reaction in which addition of hydrogen atoms in an unsaturated hydrocarbon takes place is called hydrogenation.

$R-C=CH_2+H_2\rightarrow RCH-CH_3$

Generally addition of hydrogen in alkenes or alkynes are done with help of catalyst like ; platinum nickel etc.

So, the product of the given reaction will be ethane.

$C2H4+H2 \overset{Ni}\rightarrow C_2H_6$