In the chemical reactions,

the compounds 'A' and 'B' respectively are

Options

A. (1) and (2) are elimination reactions and (3) is addition reaction
B. (1) is elimination, (2) is substitution and (3) is addition reaction
C. (1) is elimination, (2) and (3) are substitution reaction
D. (1) is substitution, (2) and (3) are addition reactions

Answer

B

Explanation

`CH_(3) CH_(2)CH_(2)- Br + KOH to CH_(3) CH= CH_(2) + KBr + H_(2)O`
breaking of `2 sigma` bonds and formation of `1pi` bond so it is an example of elimination reaction.

breaking of `1pi` bond and formation of `2 sigma` bonds is addition reaction.