Haloalkanes and Haloarenes

The major product of the following reaction is

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) :

undergoes $S_N 2$ reaction faster than

Reason (R) : lodine is a better leaving group because of its large size.
In ...

The following reaction method

is not suitable for the preparation of the corresponding haloarene products, due to high reactivity of halogen, when X is :

The major product \(\mathrm{C}\) in the below mentioned reaction is:
$$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br} \xrightarrow[\Delta]{\text { alc. } \mathrm{KOH}} \mathrm{A} \xrightarrow{\mathrm{HBr}} \mathrm{B} \xrightarrow[\De...

Identify the major product C formed in the following reaction sequence :
\(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{I} \xrightarrow{\mathrm{NaCN}} \mathrm{A}\)
$$\mathrm{\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{Partial\...

The compound that will undergo SN1 reaction with the fastest rate is

Identify 'X' in the following reaction.

Identify the product in the following reaction

Choose the correct sequence of reagents in the conversion of 4-nitrotoluene to 2-bromotoluene.

Which amongst the following reactions of alkyl halides produces isonitrile as a major product?
(A) \(\mathrm{R-X+HCN\to}\)
(B) \(\mathrm{R-X+AgCN\to}\)
(C) \(\mathrm{R-X+KCN\to}\)
(D) $$\mathrm{R-X+NaCN\mathrel{\mathop{\kern0pt\longrightarr...

The given compound

is an example of _________.

The major product formed in dehydrohalogenation reaction of 2-Bromo pentane is Pent-2-ene. This product formation is based on?

The major product of the following chemical reaction is :

Which of the following alkane cannot be made in good yield by Wurtz reaction?

Elimination reaction of 2-Bromo-pentane to form pent-2-ene is :(A) \(\beta\)-Elimination reaction(B) Follows Zaitsev rule(C) Dehydrohalogenation reaction(D) Dehydration reaction

The compound C7H8
undergoes the following
reactions :

The product ‘C’ is

Identify \(A\) and predict the type of reaction.

Consider the reaction,
CH3CH2CH2Br + NaCN \(\to\) CH3CH2CH2CN + NaBr
This reaction will be the fastest in

Which of the following biphenyls is optically active ?

The reaction of C6H5CH \(=\) CHCH3 with HBr produces

In an SN1 reaction on chiral centers, there is

Which of the following compounds will undergo racemisation when solution of KOH hydrolyses?

In the replacement reaction

The reaction will be most favourable if M happens to be

Which of the following compounds undergoes nucleophilic substitution reaction most easily?

Consider the reactions.

The mechanisms of reactions (i) and (ii) are respectively

The correct order of increasing reactivity of

C\(-\)X bond towards nucleophile in the following compounds is

Which one is most reactive towards SN1 reaction?

In the following reaction

the product 'X' is

Which of the following reactions is an example of nucleophilic substitution reaction?

In a SN2 substitution reaction of the type
R \(-\) Br + Cl\(-\) \(\buildrel {DMF} \over \longrightarrow\) R\(-\)Cl + Br\(-\)
which one of the following has the highest relative rate?

CH3 \(-\) CHCl \(-\) CH2 \(-\) CH3 has a chiral centre. Which one of the following represents its R-configuration?

Which of the following is not chiral?

Which of the following undergoes nucleophilic substitution exclusively by SN1 mechanism?

Which of the following is least reactive in a nucleophilic sibstitution reaction?

Z in the above reaction sequence is

Reactivity order of halides for dehydrologenation is

obtained by chlorination of n-butane will be

An organic compound A(C4H9Cl) on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative then, A is