The most strongly adsorbed component is present in the band near the top while the weakly adsorbed constituent is found near the bottom.

\[C{{H}_{3}}C{{H}_{2}}-N=N-C{{H}_{2}}C{{H}_{3}}\]       \[\xrightarrow{\text{Heat}}\underset{\begin{smallmatrix} \text{Free radical} \\ \left( A \right) \end{smallmatrix}}{\mathop{2C{{H}_{3}}\dot{C}{{H}_{2}}}}\,+{{N}_{2}}\]

Stability of Alkene $$ \propto $$  No. of $$H$$ - atoms or more hyperconjugation.

$$\eqalign{ & {V_1} = 68.6\,mL,{P_1} = 756\,mm,{T_1} = 300\,K \cr & {V_2} = ?,{P_2} = 760\,mm,{T_2} = 273\,K \cr & \frac{{{P_1}{V_1}}}{{{T_1}}} = \frac{{{P_2}{V_2}}}{{{T_2}}} \cr & {\text{At}}\,NTP,\,vol.\,{\text{of}}\,{N_2},{V_2} = \frac{{{P_1}{V_1}}}{{{T_1}}} \cdot \frac{{{T_2}}}{{{P_2}}} \cr & = \frac{{756 \times 68.6}}{{300}} \times \frac{{273}}{{760}} \cr & = 62.09\,mL \cr} $$
Percentage of nitrogen in organic compound
$$\eqalign{ & = \frac{{28}}{{22400}} \times \frac{{{V_2}}}{w} \times 100 \cr & = \frac{{28}}{{22400}} \times \frac{{62.09}}{{0.52}} \times 100 \cr & = 14.93\% \cr} $$

The order of stability of resonating structures carrying no charge > carrying minimum charge and each atom having octet complete.

Basic strength $$ \propto $$ rate of accepting a proton.
In $$R - \ddot N{H_2},N - $$   has lone pair of electron which increases the intensity due to electron releasing $$R$$ - group and increases the tendency to donate lone pair of electrons to $${H^ + }.$$  Secondly as the size of the $$ion$$  increases, there is less attraction for $${H^ + }$$ and form weaker bond with $$H-atom$$   and less basic. The order of the given series is
$$RN{H_2} > N{H_3} > H{S^ - } > {I^ - }$$

TIPS/Formulae :
Glyceraldehyde is taken as arbitrary standard for $$D, L -$$  nomenclature.

In the presence of $$UV$$  rays or energy, by boiling chlorine, free radical is generated which attacks the methyl carbon atom of the toluene.

On the basis of hyperconjugation, the order of stability of free radicals is as follows $${3^ \circ } > {2^ \circ } > {1^ \circ }.$$   Benzyl free radicals are stabilised by resonance and hence are more stable than alkyl free radicals. More the number of phenyl groups attached to the carbon atom, more is the stability of free radical.

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