Ethyne and Ethane can be separated from a mixture by passing it through
Correct answer: D. Ammoniacal Cu2Cl2
- A. Pyrogallol
- B. Charcoal powder
- C. Concentrated H2SO4
- D. Ammoniacal Cu2Cl2
Explanation
When alkynes react with ammoniacal Cu2Cl2, alkynides are formed which aid in the separation process. In this case, ethyne forms a precipitate of copper(II) ethyne, allowing it to be filtered out and separated from ethane. The other options are incorrect because they either do not facilitate the separation of ethyne and ethane or react with both compounds, making them unsuitable for this purpose.
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About Chemistry of Hydrocarbons
Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.
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