Question

Which of the following decolourizes \[\ce{KMnO4}\] (neutral or slightly alkaline)?  

विकल्प

• Ethane

• Ethene

• Acetylene

• Both Ethene and Acetylene

Answer 1

Both Ethene and Acetylene

Explanation:

As both are unsaturated hydrocarbons, acetylene and ethene decolourize \[\ce{KMnO4}\] solution but ethane does not.