Answer to Question #98926 in General Chemistry for Brittany Wallace

Question

1. The Lewis structure for CHCl3 has nine lone electron pairs. True or False
2. The central atom in XeF4 is surrounded by:
a.four single bonds, no double bonds, and two lone pairs of electrons.
b. four single bonds, no double bonds, and no lone pairs of electrons.
c. none of these
d. five single bonds, no double bonds, and one lone pair of electrons.
e. two single bonds, two double bonds, and no lone pairs of electrons.
3. What is the geometrical arrangement of electron pairs (bonding and nonbonding) around the nitrogen in NO2+ ?

Answer 1

1. Yes
2. a
3. angle 180⁰; double bonds are formed, pairs are shifted towards oxygen; unshared pairs of oxygen atoms (2 pairs per atom) are equidistant from each other