When excess of HCI is added to acetylene, the product is:
Correct answer: C. 1,2 - dichloroethane
- A. Vinyl chloride
- B. Ethyl chloride
- C. 1,2 - dichloroethane
- D. 1,1 - dichloroethane
Explanation
When excess hydrochloric acid (HCl) is added to acetylene (C2H2), the product formed is 1,2 - dichloroethane (C2H4Cl2). This reaction involves the addition of two molecules of HCl to the triple bond of acetylene, resulting in the formation of 1,2 - dichloroethane. Therefore, option c is correct.
Last updated
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.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.