DP Chemistry (last assessment 2024)

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Question 18M.1.sl.TZ2.21

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.1.sl.TZ2.21
Level sl Paper 1 Time zone TZ2
Command term Apply Question number 21 Adapted from N/A
21.
[Maximum mark: 1]
18M.1.sl.TZ2.21

Which element has the same oxidation number in both species?

A.     C in C2H4 and CO2

B.     H in H2O and NaH

C.     S in SO42−and SO3

D.     O in H2O2 and H2O

[1]

Markscheme

C

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