Answer to Question #92395 in Organic Chemistry for Tj

Question

Use the VSEPR theory to predict the shape of methane (CH4). Then indicate whether the bonds are polar. Will the molecule be polar?

Answer 1

Valence electtons 4+1*4=8

Lewis dot structure:

Bonding pairs - 4

lone pairs -0

General formula AB4

Electron geometry - tetrahedral

Molecular geometry - tetrahedral

Bond angle 109.5

Difference in electronegativities oo C and H is 2.5-2.1 =0.4. C-H bonds are nonpolar.

The molecule is nonpolar as bonds are non polar and molecule is symmetrical.