Important Questions on Haloalkanes and Haloarenes

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 14 - Haloalkanes and Haloarenes>Level 1>Q 42

Product [B] is

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 14 - Haloalkanes and Haloarenes>Level 1>Q 43

Which of the following statement is correct for the reactivity in ${\mathrm{S}}_{\mathrm{N}}2$ reaction?

MEDIUM

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 14 - Haloalkanes and Haloarenes>Level 1>Q 44

The compound P in the above sequence is

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 14 - Haloalkanes and Haloarenes>Level 1>Q 45

If the concentration of alkyl halide is tripled and concentration of nucleophile is reduced to half, then the rate of ${\mathrm{S}}_{\mathrm{N}}2$ reaction is increased to

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 14 - Haloalkanes and Haloarenes>Level 1>Q 46

Equal amount of an alkyl halide $\left({\mathrm{C}}_4{\mathrm{H}}_9\mathrm{C}\mathrm{l}\right)$ is reacted at the same temperature with equal volume of $0.2 \mathrm{M}$ and $0.4 \mathrm{M}$ solution of $\mathrm{K}\mathrm{O}\mathrm{H},$ respectively, in two separate experiments. The time taken for the reaction of $50\%$ of $\left({\mathrm{C}}_4{\mathrm{H}}_9\mathrm{C}\mathrm{l}\right)$ was found to be same, the alkyl halide is

EASY

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 14 - Haloalkanes and Haloarenes>Level 1>Q 47

In the nucleophilic substitution reactions $\left({\mathrm{S}}_{\mathrm{N}}\mathrm{2\hspace{0.33em}}\mathrm{or} {\mathrm{S}}_{\mathrm{N}}\mathrm{1}\right)$ the reactivity of alkyl halides follows the sequence

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 14 - Haloalkanes and Haloarenes>Level 1>Q 48

${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COOH}\underset{\mathrm{red}P}{\overset{{\mathrm{Cl}}_2}{⟶}}\mathrm{{\rm A}}\stackrel{\mathrm{alc}.\mathrm{KOH}}{⟶}\mathrm{{\rm B}}$
What is B ?

EASY

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 14 - Haloalkanes and Haloarenes>Level 1>Q 49

The S_N2 reaction involves back-side attack and therefore results in a "Walden Inversion." For which one of the substrates shown would you be able to demonstrate that such back-side attack with "Walden Inversion" has in fact occurred?