JAMB - Chemistry (2009 - No. 1)
A mixture of sugar and sulphur can be separated by?
dissolution in water, evapouration and filtration
filtration, evaporation and dissolution in water
dissolution in water, filtration and evaporation
evaporation, dissolution in water and filtration
Penjelasan
Sulfur is insoluble in water but sugar is soluble.
Hence; dissolution of sugar to have sulfur as the only insoluble solid.
Filtration: The filtrate is the liquid that passes through the filtration filter. Meanwhile, the residue is the solid that remains on the filtration filter.
Evaporation: water as part of the filtrate changes into a gas to leave sugar as residue.