Question

The molecules of the alkene family are represented by a general formula, C_nH_2n. Answer the following:

What is the molecular formula of alkene when n = 4? 

Answer 1

Given: n = 4

General formula: C_nH_2n

∴ Molecular formula of alkene = C₄H_2x4.

∴ The molecular formula for alkene is C₄H₈.

The name of the alkene with n = 4 is butane.