Question 71
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 name of this compound?
| 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 name of this compound?
