Polarity

Question 1

The polarity of zero lone pairs on the central atom

Answer 1

non-polar: all outside atoms are the same
polar: one or more atom is different

Question 2

Polarity of 1 lone pair on central atom

Answer 2

Polar

Question 3

The polarity of 2 lone pairs on the central atom

Answer 3

Non-polar: atoms 180 degrees across from are the same
Polar: atoms 180 degrees across are different