The  formation of 1,2 dibromoethane from ethene and bromine is an example of :

• Substitution

• Dehydration

• Dehydrohalogenation

• Addition

Name the organic compound prepared by each of the following reaction:

 C₂H₅COONa +NaOH---->?

Name the organic compound prepared by each of the following reaction:
CH₃I +2H ---> 

Name the organic compound prepared by each of the following reaction:

C₂H₅Br +KOH _{(alcoholic solution)}-----> 

Name the organic compound prepared by each of the following reaction:

CO+2H_{2(zinc oxide catalyst)}------>