DP Chemistry (first assessment 2025)

Test builder »

Question 21N.1A.SL.TZ0.20

Select a Test
Date November 2021 Marks available [Maximum mark: 1] Reference code 21N.1A.SL.TZ0.20
Level SL Paper 1A Time zone TZ0
Command term Apply Question number 20 Adapted from N/A
20.
[Maximum mark: 1]
21N.1A.SL.TZ0.20

Which ions are present in an aqueous solution of Na2CO3?

I.   HCO3−
II.  OH−
III. CO32−


A.  I and II only

B.  I and III only

C.  II and III only

D.  I, II and III

[1]

Markscheme

D

Syllabus sections