Embibe Experts Solutions for Chapter: Hydrocarbons, Exercise 5: EXERCISE-IV (Assertion & Reason)

Arrange the following compounds in decreasing order of reactivity in ${\mathrm{SN}}^1$ reaction :

What is the structure of $\mathrm{B}$ :-

$\begin{array}{c}{\mathrm{CH}}_3-\underset{|}{\mathrm{C}}\mathrm{H}-{\mathrm{CH}}_3 \stackrel{{\mathrm{PBr}}_3}{\to } \mathrm{X} \stackrel{\mathrm{Mg}/\mathrm{ether}}{\to } \mathrm{Y} \stackrel{{\mathrm{H}}_2\mathrm{O}/{\mathrm{H}}^{+}}{\to }\\ \mathrm{OH} \end{array}$

The final product is :

In the reaction sequence $\mathrm{A}\stackrel{\mathrm{HBr}}{⟶}\mathrm{B}\stackrel{{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{ONa}}{⟶}$ Ethoxyethane, $\mathrm{A}$ and $\mathrm{B}$ are :-

The order of reactivity of alkyl halides in Wurtz reaction is:

For the reaction, 

${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}+\mathrm{HX}\stackrel{{\mathrm{ZnX}}_2}{⟶}{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{X},$ the order of reactivity is:

The reaction,  obeys the mechanism:

An alkyl halide may be converted into an alcohol by _____.