Question

What is sp3 hybridization for C2H4 MOLECULE?

Answer 1

Ethene consists of two sp​2-hybridized carbon atoms, which are sigma bonded to each other and to two hydrogen atoms each. The remaining unhybridized p orbitals on the carbon form a pi bond, which gives ethene its reactivity.
ethene has not sp3 hybridization...
HOPE THIS WILL HELP YOU

Answer 2

This can occur on an atom with a triple bond such as the alkynes. Ethyne is the simplest.