Answer
64.8k+ views
Hint: We know that unsaturated hydrocarbons in which carbon atoms are bound to each other with double bonds are called alkenes. If one hydrogen atom from such compounds is removed, we can get a totally different compound.
Complete step by step answer:
Vinyl groups are also called ethenyl. It is basically ethylene with one less hydrogen atom less.
So, if we remove 1 Hydrogen from ethylene we get,
![](https://www.vedantu.com/question-sets/2353ddd8-d29e-491b-8fd2-4bc801a90c5b2135321051813214169.png)
Hence \[{\text{C}}{{\text{H}}_2} = {\text{CH}} - \]is a vinyl group.
So, the correct option is D.
Additional information: Vinyl groups need to be activated by some other group for enhanced reactivity. Activation increases the polarity of the bond and hence also increases reactivity. Vinyl groups are often found as intermediates in preparation of various organic compounds. In hydrohalogenation of alkynes i.e. (addition of hydrogen and halogen) vinyl groups containing intermediates are formed. For example –
\[\begin{gathered}
{\text{H}} - {\text{C}} \equiv {\text{C}} - {\text{H + H}} - {\text{Br }} \to {\text{ [C}}{{\text{H}}_2} = {\text{CH}} - {\text{Br] }} \to {\text{ C}}{{\text{H}}_3} - {\text{CH}} - {\text{B}}{{\text{r}}_2} \\
{\text{ethyne vinyl bromide dibromo ethane}} \\
\end{gathered} \]
In the above reaction, when added to ethylene, vinyl intermediate is formed. Which on further reaction gives dibromo ethane. This reaction is used in preparation of secondary alkyl halides.
Vinyl groups are known to polymerize faster when a catalyst is used. Polymers formed are called vinyl polymers. However, these polymers do not contain any vinyl groups.
On industrial level manufacturing of polyvinyl chloride, vinyl chloride is used as a starting compound which contains vinyl groups.
Note: Out of the given four options, A is a tertiary butyl group and C option is an allylic group. Allylic group is often confused with vinyl group. We can remember it in a way that vinyl is formed when ethylene loses one hydrogen atom.
Complete step by step answer:
Vinyl groups are also called ethenyl. It is basically ethylene with one less hydrogen atom less.
So, if we remove 1 Hydrogen from ethylene we get,
![](https://www.vedantu.com/question-sets/2353ddd8-d29e-491b-8fd2-4bc801a90c5b2135321051813214169.png)
Hence \[{\text{C}}{{\text{H}}_2} = {\text{CH}} - \]is a vinyl group.
So, the correct option is D.
Additional information: Vinyl groups need to be activated by some other group for enhanced reactivity. Activation increases the polarity of the bond and hence also increases reactivity. Vinyl groups are often found as intermediates in preparation of various organic compounds. In hydrohalogenation of alkynes i.e. (addition of hydrogen and halogen) vinyl groups containing intermediates are formed. For example –
\[\begin{gathered}
{\text{H}} - {\text{C}} \equiv {\text{C}} - {\text{H + H}} - {\text{Br }} \to {\text{ [C}}{{\text{H}}_2} = {\text{CH}} - {\text{Br] }} \to {\text{ C}}{{\text{H}}_3} - {\text{CH}} - {\text{B}}{{\text{r}}_2} \\
{\text{ethyne vinyl bromide dibromo ethane}} \\
\end{gathered} \]
In the above reaction, when added to ethylene, vinyl intermediate is formed. Which on further reaction gives dibromo ethane. This reaction is used in preparation of secondary alkyl halides.
Vinyl groups are known to polymerize faster when a catalyst is used. Polymers formed are called vinyl polymers. However, these polymers do not contain any vinyl groups.
On industrial level manufacturing of polyvinyl chloride, vinyl chloride is used as a starting compound which contains vinyl groups.
Note: Out of the given four options, A is a tertiary butyl group and C option is an allylic group. Allylic group is often confused with vinyl group. We can remember it in a way that vinyl is formed when ethylene loses one hydrogen atom.
Recently Updated Pages
Write a composition in approximately 450 500 words class 10 english JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Arrange the sentences P Q R between S1 and S5 such class 10 english JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
What is the common property of the oxides CONO and class 10 chemistry JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
What happens when dilute hydrochloric acid is added class 10 chemistry JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
If four points A63B 35C4 2 and Dx3x are given in such class 10 maths JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
The area of square inscribed in a circle of diameter class 10 maths JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Other Pages
Electric field due to uniformly charged sphere class 12 physics JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Excluding stoppages the speed of a bus is 54 kmph and class 11 maths JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
In the ground state an element has 13 electrons in class 11 chemistry JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
A boat takes 2 hours to go 8 km and come back to a class 11 physics JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
According to classical free electron theory A There class 11 physics JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry JEE_Main
![arrow-right](/cdn/images/seo-templates/arrow-right.png)