CH-1380
Separation and purification
Chemistry · Secondary 4 · Medium · Separation and purification
A mixture contains three solids A, B and C.
Their solubilities are:
- A: soluble in water, insoluble in ethanol
- B: insoluble in water, soluble in ethanol
- C: insoluble in both water and ethanol
Water is added to the mixture and it is then filtered.
Which substances are present in the residue on the filter paper?
Their solubilities are:
- A: soluble in water, insoluble in ethanol
- B: insoluble in water, soluble in ethanol
- C: insoluble in both water and ethanol
Water is added to the mixture and it is then filtered.
Which substances are present in the residue on the filter paper?
- A only
- B only
- B and C
- A and C
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