Question

the molecule acetylene (c₂h₂) has hybridization, resulting in a linear shape.

Explanation:

In acetylene ($C_2H_2$), each carbon atom forms two sigma bonds and has two pi - bonds. To account for the linear geometry and the bonding, each carbon atom undergoes sp - hybridization. This hybridization results in two sp hybrid orbitals which form sigma bonds with other atoms, and the unhybridized p - orbitals form pi - bonds.

Answer:

sp