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
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Chemistry of Hydrocarbons
1,091 free Chemistry of Hydrocarbons MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Alkynes questions
Which of the following reaction does acetylene give due to its acidic hydrogens?
Which of the following compound is formed as a result of polymerization of acetylene?
Calcium carbide on reaction with water gives _.
Which one of the following is most reactive?:
Metallic carbide on treatment with water gives a colorless gas which burns readily in air and gives a white precipitate with AgNO3 + NaOH the gas is
When treated with ammonical cuprous chloride, which of the following forms copper derivates?