DP Chemistry (last assessment 2024)
Question 19M.1.hl.TZ2.2
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.1.hl.TZ2.2 |
| Level | hl | Paper | 1 | Time zone | TZ2 |
| Command term | Question number | 2 | Adapted from | N/A |
2.
[Maximum mark: 1]
19M.1.hl.TZ2.2
What is the sum of the integer coefficients when propene undergoes complete combustion?
__C3H6 (g) + __O2 (g) → __CO2 (g) + __H2O (l)
A. 11
B. 17
C. 21
D. 23
[1]
Markscheme
D
Examiners report
93 % of the candidates balanced the equation for the combustion of propene and obtained the sum of the integer coefficients.