Which alkyne with chemical formula CH3C≡CH appears as a colourless liquefied gas with a sweet odour?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 1-Propyne.
The alkyne with formula CH₃C≡CH is propyne, also called methylacetylene. It is the simplest alkyne after ethyne and exists as a colourless liquefied gas under pressure. Propyne has a characteristic sweet, ether-like odour. It is highly flammable and is mainly used as a fuel and a chemical intermediate in organic synthesis. Due to its unsaturated triple bond, propyne readily undergoes addition reactions, making it useful in producing various industrial chemicals.