DP Chemistry (last assessment 2024)
Question 21N.2.hl.TZ0.b(i)
Date | November 2021 | Marks available | [Maximum mark: 3] | Reference code | 21N.2.hl.TZ0.b(i) |
Level | hl | Paper | 2 | Time zone | TZ0 |
Command term | Deduce | Question number | b(i) | Adapted from | N/A |
b(i).
[Maximum mark: 3]
21N.2.hl.TZ0.b(i)
White phosphorus is an allotrope of phosphorus and exists as P4.
Deduce the electron domain and molecular geometry using VSEPR theory, and estimate the Cl–P–Cl bond angle in PCl3.
[3]
Markscheme
Electron domain geometry: tetrahedral ✔
Molecular geometry: trigonal pyramidal ✔
Bond angle: 100«°» ✔
Accept any value or range within the range 91−108«°» for M3.