Explain the following :

($\mathrm{i}$) Iodoform gives precipitate with ${\mathrm{AgNO}}_3$ on heating while ${\mathrm{CHCl}}_3$ does not.

Explain the following:

Hydrogen atom of chloroform is definitely acidic, but that of methane is not.

Explain the following:

($\mathrm{i}$)$\text{ A}$ small amount of alcohol is added to chloroform bottles

Explain the following:

${\mathrm{CH}}_3-{\mathrm{CH}}_2\mathrm{I}$ reacts more rapidly with strong base in comparison to ${\mathrm{CD}}_3{\mathrm{CH}}_2$$\mathrm{I}$.

Complete the following by providing $\left(\mathrm{A}\right)$, $\left(\mathrm{B}\right)$ and $\left(\mathrm{C}\right)$:

 ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}={\mathrm{CH}}_2$ $\frac{\mathrm{NBS}}{\text{ Light }}\left(\mathrm{A}\right)\stackrel{\mathrm{Alc}.\mathrm{KOH}}{⟶}\left(\mathrm{B}\right)\stackrel{\mathrm{HBr}}{⟶}\left(\mathrm{C}\right)$

Complete the following by providing $\left(\mathrm{A}\right), \left(\mathrm{B}\right)$ and $\left(\mathrm{C}\right)$:

${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{MgBr}\stackrel{{\mathrm{CH}}_3\mathrm{CHO}/{\mathrm{H}}_3{\mathrm{O}}^{+}}{⟶}\left(\mathrm{A}\right)\stackrel{\mathrm{HBr}}{⟶}\left(\mathrm{B}\right)$ $\stackrel{\mathrm{Alc}·\mathrm{KOH}}{⟶}\left(\mathrm{C}\right)$

Complete the following by providing $\left(\mathrm{A}\right),\left(\mathrm{B}\right),\left(\mathrm{C}\right)$ and $\left(\mathrm{D}\right)$:

${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{OH}\underset{}{\overset{{\mathrm{PBr}}_3}{\to }}\left(\mathrm{A}\right)\stackrel{\mathrm{Alc}.\mathrm{KOH}}{\to }\left(\mathrm{B}\right)$ $\stackrel{\mathrm{HBr}}{⟶}\left(\mathrm{C}\right)\stackrel{{\mathrm{NH}}_3}{⟶}\left(\mathrm{D}\right)$

Complete the following by providing $\left(\mathrm{A}\right),\left(\mathrm{B}\right),\left(\mathrm{C}\right)$ and $\left(\mathrm{D}\right)$ : 

${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{I}\underset{}{\overset{\mathrm{ac}. \mathrm{KOH}}{\to }}\left(\mathrm{A}\right)\underset{}{\overset{H^{+}/H_{2}O}{\to }}\left(\mathrm{B}\right)$ $\underset{}{\overset{SOC{l}_2}{\to }} \left(C\right) \underset{}{\overset{LiAl{H}_4}{\to }} \left(D\right)$

Write the major product of the following reaction.