SECTION 1.3 DIFFICULTY LEVEL

16. Using the VSEPR model, predict which species have bond angles of about 109°.

HINT: Assume that the charges are correct. Add the missing lone pairs before applying the VSEPR theory!

NH

3

CO

2

H

2

O H

3

O

+

O

3

I II III IV V

a) I, III, IV

b) II, III, V

c) I, IV

d) III, IV, V

Answer: a