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O-LevelChemistryAcids, Bases & Salts5070/11 · Oct/Nov 2011 · Q21 Mark

The labels fell off two bottles each containing a colourless solution, one of which was sodium carbonate solution and the other was sodium chloride solution. The addition of which solution to a sample from each bottle would most readily enable the bottles to be correctly relabelled?

Aammonia
Bhydrochloric acid
Clead(II) nitrate
Dsodium hydroxide

✓ Correct answer

B: hydrochloric acid

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About this question

Topic
Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, Oct/Nov 2011 Paper 1 Variant 1, question 2.

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