Among the following alkynes, which is having eight sp hybrid orbitals?
Hexa–1,3–diyne
Hexa–1,2–diene
Hex–1–ene–3–yne
Hex–1–en–3–yne
Hex–1,3–diyne is having four sp hybridized carbon atoms. All the four carbon atoms contains eight orbitals (each carbon contains two orbitals).