Question

chemical reaction of ethanol with hydrogen in presence of nickel

Answer 1

eth means 2 ane means single bond
ol means there is presence of OH group .
hydrogen is symbolis as H . Nickel is symbolis as Ni.
Ethanol + Hydrogen in Nickel gives us
H H
H - C - C - OH + H gives CH 3 CH 2 OH 2
H. H