What is the molecular geometry around each carbon atom in a saturated hydrocarbon?

            Molecular geometry around each carbon atom in a saturated hydrocarbon is Tetrahedral.

Explanation:
                      In saturated hydrocarbons (-CH₂-) the central atom (carbon) is bonded to either three or two hydrogen atoms and one or two carbon atoms. So, the central atom is having four electron pairs and all pairs are bonding pairs and lacks any lone pair of electron. According to Valence Shell Electron Pair Repulsion (VSEPR) Theory the central atom with four bonding pair electrons and zero lone pair electrons will attain a tetrahedral geometry with bond angles of 109°. 

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