Which among the following is haloalkyne?

Step-by-step solution

A haloalkyne (or alkynyl halide) is a compound in which a halogen atom is directly bonded to an sp -hybridized carbon atom of the carbon-carbon triple bond. In chloroethyne ( Cl-C CH ), the chlorine atom is directly attached to the sp -hybridized carbon atom. Therefore, it is a haloalkyne. In 3-chloropropyne ( HC C-CH₂-Cl ), 1-chloropent-2-yne ( CH₃-CH₂-C C-CH₂-Cl ), and 4-chloropent-2-yne ( CH₃-CH(Cl)-C C-CH₃ ), the chlorine atom is attached to an sp^3 -hybridized carbon atom. Answer: Chloroethyne