DP Chemistry (last assessment 2024)
Question 17N.2.sl.TZ0.b
Date | November 2017 | Marks available | [Maximum mark: 1] | Reference code | 17N.2.sl.TZ0.b |
Level | sl | Paper | 2 | Time zone | TZ0 |
Command term | Predict | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 1]
17N.2.sl.TZ0.b
Lewis (electron dot) structures are useful models.
Predict with a reason, whether the molecule PF3 is polar or non-polar.
[1]
Markscheme
polar AND bond polarities/dipoles do not cancel out
OR
polar AND unsymmetrical distribution of charge
Apply ECF from part (a) molecular geometry.
