Question 72
The table gives the names, colours and solubility in water of four compounds.
| Name | Colour | Solubility in water |
|---|---|---|
| sodium chloride | white | soluble |
| zinc carbonate | white | insoluble |
| iron sulfate | green | soluble |
| copper carbonate | green | insoluble |
The compounds were added to separate beakers of water. There was enough water to dissolve the soluble compounds completely. The contents of each beaker were filtered.
One of the compounds left a white solid in the filter paper. What is the colour of the filtrate from this beaker?
| Name | Colour | Solubility in water |
|---|---|---|
| sodium chloride | white | soluble |
| zinc carbonate | white | insoluble |
| iron sulfate | green | soluble |
| copper carbonate | green | insoluble |
The compounds were added to separate beakers of water. There was enough water to dissolve the soluble compounds completely. The contents of each beaker were filtered.
One of the compounds left a white solid in the filter paper. What is the colour of the filtrate from this beaker?
