DP Chemistry (last assessment 2024)
Question 22M.2.hl.TZ2.7b(i)
| Date | May 2022 | Marks available | [Maximum mark: 2] | Reference code | 22M.2.hl.TZ2.7b(i) |
| Level | hl | Paper | 2 | Time zone | TZ2 |
| Command term | Sketch | Question number | b(i) | Adapted from | N/A |
b(i).
[Maximum mark: 2]
22M.2.hl.TZ2.7b(i)
The overall equation for the production of hydrogen cyanide, HCN, is shown below.
CH4 (g) + NH3 (g) +O2 (g) → HCN (g) + 3H2O (g)
(b(i))
Sketch the shape of one sigma () and one pi () bond.
[2]
Markscheme
Sigma ():
Pi ():
Accept overlapping p-orbital(s) with both lobes of equal size/shape.
Shaded areas are not required in either diagram.