Question:
Chlorination of which of the following substance is a substitution reaction?
Chlorination of which of the following substance is a substitution reaction?
Updated On: Jun 20, 2022
- 2-butene
- 1-butyne
- iso-butane
- iso-butylene
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Unsaturated compounds like alkenes, alkynes show addition reaction with chlorine while saturated compounds like alkane (iso-butane) give substitution reaction on chlorination.
$\underset{\text{iso - butane}}{CH _{3}- \underset{\overset{|}{C}H_3}{CH} - CH _{3}} {->[{ Cl _{2}}][\text{light}]} CH _{3}- CH - CH _{2} Cl+ CH _{3}- \underset{\overset{|}{C}H_3}{\overset{\underset{|}{C}l}{C}} - CH _{3}$
$\underset{\text{iso - butane}}{CH _{3}- \underset{\overset{|}{C}H_3}{CH} - CH _{3}} {->[{ Cl _{2}}][\text{light}]} CH _{3}- CH - CH _{2} Cl+ CH _{3}- \underset{\overset{|}{C}H_3}{\overset{\underset{|}{C}l}{C}} - CH _{3}$
Was this answer helpful?
0
0
Top Questions on Methods of Preparation of Haloalkanes
The interhalogen compound formed from the reaction of bromine with excess of fluorine is a :
- JEE Main - 2022
- Chemistry
- Methods of Preparation of Haloalkanes
- An alkene \("A"\) on reaction with \(O_3\) and \(Zn - H_2{0}\) given propanone and ethanol in equimolar ratio. Addition of \(HCI\) to alkene \("A"\) gives. \("B"\)as the major product. The structure of product \("B"\) is :
- NEET (UG) - 2019
- Chemistry
- Methods of Preparation of Haloalkanes
- The conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as
- MHT CET - 2017
- Chemistry
- Methods of Preparation of Haloalkanes
- In the following reaction, $C_6H_5CH_2Br \ce{->[{(i) \text{Mg,Ether}}][{(ii) H_3O^+}] X }$ the product ' $X$ ' is
- VITEEE - 2012
- Chemistry
- Methods of Preparation of Haloalkanes
- The major product obtained in the photobromination of 2-methyl butane is
- AIEEE - 2012
- Chemistry
- Methods of Preparation of Haloalkanes
View More Questions
Questions Asked in BHU UET exam
- Excitation of chlorophyll in light is
- BHU UET - 2012
- Photosynthesis in higher plants
- Triticale, the first man made cereal crop, has been obtained by crossing wheat with
- BHU UET - 2012
- Strategies For Enhancement in Food Production
- Bryophytes are known as amphibians of plant kingdom because
- BHU UET - 2012
- Kingdom Plant
- In Cycas, dehiscence of microsporangium occurs when pollen grains are at
- BHU UET - 2012
- Kingdom Plant
- Potato spindle tuber disease is caused by
- BHU UET - 2012
- biological classification
View More Questions
Concepts Used:
Preparation of Haloalkanes
- Preparation by Alcohols: By using alcohol, we can very easily prepare Haloalkane as when R-OH is reacted with a suitable reagent it will form R-X. The following reagents will help in the formation of the reactions:
- Halogen Acids (HX)
- Thionyl chloride (SOCl2)
- Phosphorous halides (PX5 or PX3)
- Preparation by Free Radical Halogenation: The formation of alkyl bromides and alkyl chloride is very much possible with the help of free radical halogenation, but as these radicals are highly reactive and non-specific in nature, they can result in the formation of a mixture of products. Though, it's not a preferred method for the preparation of haloalkanes. For example, free radical chlorination can result in the formation of a number of haloalkanes, which in turn makes it difficult to set apart a single product.
- Preparation by Alkenes: An electrophilic addition reaction can be used to transform an alkene into a haloalkane as alkene will react with HX to form R-X.
Read More: Haloalkanes and Haloarenes