Write the structure and $\mathrm{IUPAC}$ name of the major product in the following reaction:  

  

Write the structure and $\mathrm{IUPAC}$ name of the major product in the following reaction:

Identify chiral molecule/s from the following.

Complete the following reaction giving major product:

${\mathrm{CH}}_3-\mathrm{CH}={\mathrm{CH}}_2\underset{\mathrm{peroxide}}{\overset{ \mathrm{HBr} }{\to }}\mathrm{A}\stackrel{\mathrm{alc}.\mathrm{KOH} }{\to }\mathrm{B}$

Complete the following reaction giving major product:

Complete the following reaction giving major product:

Complete the following reaction giving major product:

Name the reagent used to bring about the following conversion:

Bromoethane to ethoxyethane

Name the reagent used to bring about the following conversion:

$1$-Chloropropane to $1$-nitropropane.