In the given reaction:

${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{O}-{\mathrm{CH}}_2-{\mathrm{CH}}_2\stackrel{\mathrm{HCl}/∆}{\to }\left[\mathrm{X}\right]+\left[\mathrm{Y}\right]$, 

$\left[\mathrm{X}\right] \text{and} \left[\mathrm{Y}\right]$ will be, respectively:

The product $\mathrm{A}$ in the above reaction is:

The final product $\left(\mathrm{B}\right)$ is:

The products obtained in final step are: