DP Chemistry (last assessment 2024)
Question 17N.1.sl.TZ0.17
| Date | November 2017 | Marks available | [Maximum mark: 1] | Reference code | 17N.1.sl.TZ0.17 |
| Level | sl | Paper | 1 | Time zone | TZ0 |
| Command term | Question number | 17 | Adapted from | N/A |
17.
[Maximum mark: 1]
17N.1.sl.TZ0.17
Excess magnesium powder was added to a beaker containing hydrochloric acid, HCl (aq).
The mass of the beaker and its contents was recorded and plotted against time (line I).
Which change could give line II?
A. Doubling the mass of powdered Mg
B. Using the same mass of Mg ribbon
C. Increasing the temperature
D. Using the same volume of more concentrated HCl
[1]
Markscheme
D