DP Chemistry (last assessment 2024)

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Question 20N.1.hl.TZ0.13

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Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.1.hl.TZ0.13
Level hl Paper 1 Time zone TZ0
Command term State Question number 13 Adapted from N/A
13.
[Maximum mark: 1]
20N.1.hl.TZ0.13

Which statement is correct?

A.  O3 bond dissociation occurs at a longer wavelength of light than O2 bond dissociation.

B.  O3 bond dissociation occurs at a higher energy than O2 bond dissociation.

C.  O3 bond lengths are shorter than O2 bond lengths.

D.  O3 bond dissociation occurs at a higher frequency of light than O2 bond dissociation.

[1]

Markscheme

A

Examiners report

Another well answered question where a good majority of candidates understood how ozone and oxygen bond dissociation energies would be affected by various wavelengths or frequencies of light.

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