English

What is hydrogenation? How hydrogenation of ethene occurs?

Advertisements
Advertisements

Question

What is hydrogenation? How hydrogenation of ethene occurs?

Short Answer
Advertisements

Solution

Ethene reacts with hydrogen gas when heated in the presence of a catalyst like nickel to give ethane. The addition of hydrogen across the double bond is called hydrogenation.

\[\ce{\underset{Ethene}{CH2 = CH2} + H2 ->[Ni][300^\circ C] \underset{Ethane (saturated)}{CH3 - CH3}}\]

shaalaa.com
  Is there an error in this question or solution?
Chapter 14: Unsaturated Hydrocarbons: Alkenes - Exercises [Page 273]

APPEARS IN

Frank Chemistry Part 2 [English] Class 10 ICSE
Chapter 14 Unsaturated Hydrocarbons: Alkenes
Exercises | Q 10. (i) | Page 273

RELATED QUESTIONS

Write any four properties of organic compounds that distinguish them from inorganic compounds.


Define of chain isomerism.


Write the observation and name of the product for the following:

When ethene is passed in bromine solution in CCl4.


Write the composition of the following:

 Methylated spirit


Give the reactions of ethyne with  Bromine.


Methane reacts with energy of chlorine in diffused sunlight to give the final product as


Write a balanced chemical equation for the following:

Burning of ethane in plentiful supply for air.


What is the Vital force theory? Why was it discarded?


Carbon to carbon double bond is found in ______.


The structures of six organic compounds are shown:

A

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H - C - C = C - C - H}\\
|\phantom{.............}|\\
\ce{H}\phantom{............}\ce{H}
\end{array}\]

B

\[\begin{array}{cc}
\phantom{.......}\ce{H}\phantom{.....}\ce{O}\\
\phantom{.......}|\phantom{.....}//\\
\ce{H - C - C}\\
\phantom{......}|\phantom{.....}\backslash\\
\phantom{...........}\ce{H}\phantom{.....}\ce{O - H}
\end{array}\]

C

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}
\end{array}\]

D

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\\
\ce{H - C - C - H}\\
|\phantom{....}|\\
\ce{H}\phantom{...}\ce{O}\\
\phantom{.......}\backslash\\
\phantom{.........}\ce{H}
\end{array}\]

E

\[\begin{array}{cc}
\ce{H}\\
|\\
\ce{H - C - H}\\
\ce{H}\phantom{....}\phantom{....}\ce{H}\\
|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}
\end{array}\]

F

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\\
\ce{C = C}\\
|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}
\end{array}\]

  1. Identify two of the compounds that are members of the same homologous series but are not isomers.
  2. Which two compounds are isomers of each other?
  3. F can be prepared from D. Give a chemical equation for the reaction.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×