Identify the CORRECT decreasing order of basic strength of compounds from following.

Identify product $$\mathrm{B}$$ in the following reaction.

Which of the following compounds does NOT develop intermolecular hydrogen bonding?

Identify substrate $$\mathrm{A}$$ in the following reaction.

$$\mathrm{A}+\mathrm{AgOH} \underset{\mathrm{ii)}~\Delta}{\stackrel{\text { i) moist } \mathrm{Ag}_2 \mathrm{O}}{\longrightarrow}} \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{~N}\left(\mathrm{CH}_3\right)_2+\mathrm{CH}_2=\mathrm{CH}_2$$