Choose the following false statement. A sigma bond is a bond resulting from head-on overlap of atomic orbitals. A pi bond is a bond resulting from side-on overlap of atomic orbitals. A double bond consists of one sigma bond and one pi bond. A triple bond may consist of one sigma bond and two pi bonds or of two sigma bonds and one pi bond. A carbon atom involved in a double bond may not be sp^3 hybridized. The hybridization associated with the central atom of a molecule in which all the bond angles are 109.5 degree is sp sp^2 sp^3 sp^3d sp^3d^2 Which of the following molecules has the smallest bond angle(s)? CH_4 NH_3 H_2O CF_4 CO_2