Exercise-3

$2$-Methylbutane on reacting with bromine in the presence of sunlight gives mainly

Which of the following is the correct order of decreasing ${\mathrm{S}}_{\mathrm{N}}2$ reactivity?

Which of the following on heating with aqueous $\mathrm{KOH}$, produces acetaldehyde?

The synthesis of alkyl fluorides is best accomplished by

The increasing order of the reactivity of the following halides for the ${\mathrm{S}}_{{\mathrm{N}}^1}$ reaction is

$\underset{\left(\mathrm{I}\right)}{\underset{\stackrel{|}{\mathrm{Cl}}}{{\mathrm{CH}}_3{\mathrm{CHCH}}_2{\mathrm{CH}}_3}}$ $\underset{\left(\mathrm{II}\right)}{{\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{Cl}}$ $\underset{\left(\mathrm{III}\right)}{\mathrm{p}-{\mathrm{H}}_3\mathrm{CO}-{\mathrm{C}}_6{\mathrm{H}}_4-{\mathrm{CH}}_2\mathrm{Cl}}$

Identify the set of reagents/reaction conditions $\mathrm{X}$ and $\mathrm{Y}$ in the following set of transformation 

${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2\mathrm{Br}\stackrel{\mathrm{X}}{⟶}\mathrm{product}\stackrel{\mathrm{Y}}{⟶}{\mathrm{CH}}_3-\underset{\stackrel{|}{\mathrm{Br}}}{\mathrm{CH}}-{\mathrm{CH}}_3$

The total number of alkenes possible by dehydrobromination of $3$-bromo-$3$-cyclopentylhexane using alcoholic $\mathrm{KOH}$ is

Fluorobenzene $\left({\mathrm{C}}_6{\mathrm{H}}_5 \mathrm{F}\right)$ can be synthesized in the laboratory