Question

The chief reaction product of reaction between $$n$$ - butane and bromine at $$573K$$  is :

A. Electrophilic Aromatic Substitution (Haloalkanes and Haloarenes) mcq option image
B. Electrophilic Aromatic Substitution (Haloalkanes and Haloarenes) mcq option image  
C. Electrophilic Aromatic Substitution (Haloalkanes and Haloarenes) mcq option image
D. Electrophilic Aromatic Substitution (Haloalkanes and Haloarenes) mcq option image
Answer :   Electrophilic Aromatic Substitution (Haloalkanes and Haloarenes) mcq option image
Solution :
The reaction proceeds via free radical mechanism.
As $${2^ \circ }$$  free radical is more stable than $${1^ \circ },$$  so $$C{H_3}C{H_2}CH\left( {Br} \right)C{H_3}$$     would be formed.

Releted MCQ Question on
Organic Chemistry >> Electrophilic Aromatic Substitution (Haloalkanes and Haloarenes)

Releted Question 1

The reaction of toluene with chlorine in presence of ferric chloride gives predominantly :

A. benzoyl chloride
B. $$m $$ - chlorotoluene
C. benzyl chloride
D. $$o $$ - and $$p $$ - chlorotoluene
Releted Question 2

Bottles containing $${C_6}{H_5}I$$  and $${C_6}{H_5}C{H_2}I$$   lost their original labels. They were labelled $$A$$ and $$B$$ for testing. $$A$$ and $$B$$ were separately taken in test tubes and boiled with $$NaOH$$  solution. The end solution in each tube was made acidic with dilute $$HN{O_3}$$  and then some $$AgN{O_3}$$  solution was added. Substance B gave a yellow precipitate. Which one of the following statements is true for this experiment ?

A. $$A$$ and $${C_6}{H_5}C{H_2}I$$
B. $$B$$ and $${C_6}{H_5}I$$
C. Addition of $$HN{O_3}$$  was unnecessary
D. $$A$$ was $${C_6}{H_5}I$$
Releted Question 3

Fluorobenzene $$\left( {{C_6}{H_5}F} \right)$$  can be synthesized in the laboratory

A. by direct fluorination of benzene with $${F_2}$$  gas
B. by reacting bromobenzene with $$NaF$$  solution
C. by heating phenol with $$HF$$  and $$KF$$
D. from aniline by diazotisation followed by heating the diazonium salt with $$HB{F_4}$$
Releted Question 4

Reaction of $$trans$$  2 - phenyl - 1 - bromocyclopentane on reaction with alcoholic $$KOH$$  produces

A. 1 - phenylcyclopentene
B. 3 - phenylcyclopentene
C. 4 - phenylcyclopentene
D. 2 - phenylcyclopentene

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