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Ethyne can be prepared using 1, 2-dibromoethane as starting material. What else is used in preparation?

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Ethyne can be prepared using 1, 2-dibromoethane as starting material. What else is used in preparation? Answer: Alcoholic KOH

When 1,2-dibromoethane is heated with alcoholic potassium hydroxide (KOH), it undergoes a reaction called dehydrohalogenation, where the bromine atoms are removed along with hydrogen atoms, resulting in the formation of ethyne (acetylene).

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.