O-LevelChemistryBonding & Structure5070/12 · Oct/Nov 2017 · Q11 Mark

A mixture of sand and sodium chloride can be separated in three steps. Step 1 is to add water to the mixture. The diagram shows step 2 and step 3. Where is pure sodium chloride collected?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Asolid on filter paper (A)

Bliquid in conical flask (B)

Csolution in evaporating dish before heating (C)

Dsolid in evaporating dish after heating (D)

✓ Correct answer

D: solid in evaporating dish after heating (D)

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Topic: Bonding & Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2017 Paper 1 Variant 2, question 1.

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