Which of the following molecules would you expect to be nonpolar?1. 2. 3. 4. (a) 1 and 2(b...

Which of the following molecules would you expect to be nonpolar?

1. 

2. 

3. 

4. 

(a) 1 and 2

(b) 1 and 3

(c) 1 and 4

(d) 2 and 3

(e) 2, 3, and 4

 The following two questions refer to the hypothetical compounds: