DP Chemistry (last assessment 2024)

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Question 21M.1.sl.TZ1.20

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1.sl.TZ1.20
Level sl Paper 1 Time zone TZ1
Command term Solve Question number 20 Adapted from N/A
20.
[Maximum mark: 1]
21M.1.sl.TZ1.20

Which solution has a pH of 9?

A.  1.0 × 10−9 mol dm−3 HCl (aq)

B.  1.0 × 10−5 mol dm−3 KOH (aq)

C.  1.0 × 10−9 mol dm−3 KOH (aq)

D.  1.0 × 10−5 mol dm−3 HCl (aq)

[1]

Markscheme

B

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