Which of the following compounds will produce a precipitate with $AgN{O}_3$?

The major product of the following reaction is:

The major product of the following reaction is:

The major product of the following reaction is:

${\mathrm{CH}}_2=\mathrm{CHBr}\underset{\mathrm{Red} \mathrm{hot} \mathrm{iron} \mathrm{tube}, 873 \mathrm{K}}{\overset{{\mathrm{NaNH}}_2}{\to }}\mathrm{P}$

The major product of the following reaction is:

The reagent required for the following two step transformation are

The increasing order of reactivity of the following compounds towards reaction with alkyl halides directly is:

$\left(i\right)$

$\left(ii\right)$

$\left(iii\right)$

$\left(iv\right)$

Identify the product $\mathrm{X}$ obtained in following reaction

${\mathrm{CH}}_3-{\left({\mathrm{CH}}_2\right)}_4-{\mathrm{CH}}_3\underset{773 \mathrm{K}, 10-20 \mathrm{atm}}{\overset{{\mathrm{Cr}}_2{\mathrm{O}}_3}{\to }} \mathrm{X}$