How many molecules of H2 are added in acetylene to form ethane?
Correct answer: D. 2
- A. 1
- B. 3
- C. 4
- D. 2
Explanation
Acetylene, C2H2, can be converted to ethane, C2H6, by a process known as hydrogenation. One molecule of H2 when added to acetylene forms ethene. The addition of another molecule of H2 results in the formation of ethane. A total of 2 molecules of H2 are hence required Option A,B and C are incorrect
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About Alkynes
Alkynes are unsaturated hydrocarbons containing a carbon-carbon triple bond, with sp-hybridised carbon atoms and a linear arrangement around the bond. The content includes nomenclature, preparation, acidity of terminal alkynes, and addition reactions with hydrogen, halogens, hydrogen halides and water, as well as oxidation.
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