Haloalkanes and Haloarenes Test

Result

Haloalkanes and Haloarenes Test - 55

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Weekly Quiz Competition

Question 1
1 / -0

Halogenation of alkanes is

A
A reductive process

B
An oxidative process

C
An isothermal process

D
An indothermal process

Solution

The reaction of a halogen with an alkane in the presence of ultraviolet (UV) light or heat leads to the formation of a haloalkane (alkyl halide).This is a oxidative process
Question 2
1 / -0

Stilbene $$(PhCH=CHPh)$$ can exist in two diastereomeric forms $$(X)$$ and $$(Y)$$, and $$(X)$$ is found to be more soluble in water than $$(Y)$$. Predict which of the following statement is correct.

A
$$X$$ is trans isomer

B
Stability of $$X >$$ stability of $$Y$$

C
Melting point of $$X <$$ melting point of $$Y$$

D
Boiling point of $$X <$$ boiling point of $$Y$$

Solution
Question 3
1 / -0

Benzene reacts with $$CH_{3}Cl$$ in the presence of anhydrous $$AlCl_{3}$$ to form:

A
Toluene

B
Xylene

C
Chlorobenzene

D
Benzyl chloride

Solution

Benzene reacts with $$CH_3Cl$$ in presence of anhydrous $$AlCl_3$$ to give toulene.

This is Friedel crafts Alkylation and an electrophilic substitution reaction.
Question 4
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In the following reaction, the major product $$'X'$$ is

A

B

C

D

Solution
Question 5
1 / -0

Identify $$'B'$$ in the following reaction

A

B

C

D
None of these

Solution

Answer is C, as :

$$CH_3-C_6H_5-Cl \xrightarrow{KMnO_4} COOH-C_6H_5-Cl \xrightarrow{C_2H_5OH} COOC_2H_5-C_6H_5-Cl$$
Question 6
1 / -0

Toluene on treatment with $$CH_{3}Cl$$ and $$AlCl_{3}$$ at $$80^{\circ}C$$ gives the major product as

A
$$o-xylene$$

B
$$p-xylene$$

C
$$m-xylene$$

D
Ethylbenzene

Solution

Friedel-Craft's alkylation of toluene by reaction with methyl chloride in the presence of $$AlCl_3$$ and heat produces meta-isomer that is m-xylene as major product
Question 7
1 / -0

The product of the following reaction $$C_{6}H_{6} + Cl_{2} \xrightarrow {Sunlight} ?$$; is

A
$$C_{6}H_{5}Cl$$

B
Ortho $$C_{6}H_{4}Cl_{2}$$

C
$$C_{6}H_{6}Cl_{6}$$

D
Para $$C_{6}H_{4}Cl_{2}$$

Solution
Question 8
1 / -0

The final product of the given reaction sequence is:

A

B

C

D

Solution
Question 9
1 / -0

If the light waves pass through a nicol prism then all the oscillations occur only in one plane such beam of light is called as

A
Non polarised light

B
Plane polarised light

C
polarised light

D
Optical light

Solution

Correct option is $$B$$.
Question 10
1 / -0

What is the major product of the following reaction $$CH_{3}C\equiv C-CH_{2}-CH_{3}\xrightarrow[]{1 \,mole \,of \,Cl_{2}}$$

A

B
$$CH_{3}-CH_{2}-\overset{Cl}{\overset{|}{\underset{Cl}{\underset{|}{C}}}}-CH_{2}CH_{3}$$

C

D
$$CH_{3}-\overset{Cl}{\overset{|}{\underset{Cl}{\underset{|}{C}}}}-\overset{Cl}{\overset{|}{\underset{Cl}{\underset{|}{C}}}}-CH_{2}CH_{3}$$

Solution

$$CH_{3}C\equiv C-CH_{2}-CH_{3}\xrightarrow[]{1 \,mole \,of \,Cl_{2}}$$$$CH_{3}-\overset{Cl}{\overset{|}{\underset{Cl}{\underset{|}{C}}}}-\overset{Cl}{\overset{|}{\underset{Cl}{\underset{|}{C}}}}-CH_{2}CH_{3}$$
Option D is a correct answer.