Which of the following molecules does not exhibit a net dipo

Which of the following molecules does not exhibit a net dipole moment of zero? A) CH_4 B) CO_2 C) CCI_4 D) SO_3 E) H_2O Given the number of nonbonding pairs of electrons in H_2NOH. A) 2 B) 0 C) 4 D) 1 E) 3 Each lone pair of electrons on the O atom in methanol (CH_3OH) occupies a(n) orbital. A) p B)sp C)sp^2 D)s E) sp^3 A molecule of acetonitrile CH_3 CN contains sigma bonds and pi bonds. A) 4, 2 B) 4, 0 C)2, 2 D)4, 3 E) 5, 2 Identify the hybridization of the oxygen in CH_3OCH_3. A)sp^2 B)sp^3 C)sp^5 D)sp^4 E) sp The atomic number of boron is 5. The correct electronic configuration of boron is .

Solution

10) H2O

11) 3

12) sp3

13) 5 SIGMA 2 PI BONDS

3x sigma bonds in CH3

And one C-C sigma bond and one between C-N

There are two pi bonds in C-N

14)a carbon involved in a double bond, its geometry will be trigonal, with 120^o bond angles, and it will have sp² hybridization.

15)1s2 2s2 2p1