DP Chemistry (last assessment 2024)
Question 19M.1.sl.TZ2.6
Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.1.sl.TZ2.6 |
Level | sl | Paper | 1 | Time zone | TZ2 |
Command term | Question number | 6 | Adapted from | N/A |
6.
[Maximum mark: 1]
19M.1.sl.TZ2.6
Which transition in the hydrogen atom emits visible light?
A. n = 1 to n = 2
B. n = 2 to n = 3
C. n = 2 to n = 1
D. n = 3 to n = 2
[1]
Markscheme
D
Examiners report
This question discriminated well between high scoring and low scoring candidates. 68% of the candidates chose the correct transition that emits visible light (n = 3 to n = 2). The most commonly chosen distractor C was the only other option that involved emission.