Uploaded July 2015 | Updated September 2026, 2 weeks ago
Zinc carbonate is a white powdery solid. When it is heated strongly, it starts to turn yellow and decompose - carbon dioxide gas is evolved, which forms a white precipitate in limewater.
The yellow solid left behind in the test-tube is hot zinc oxide. As the hot zinc oxide cools, it turns white in colour.
Zinc carbonate is a white powdery solid. When it is heated strongly, it starts to turn yellow and decompose - carbon dioxide gas is evolved, which forms a white precipitate in limewater.
The yellow solid left behind in the test-tube is hot zinc oxide. As the hot zinc oxide cools, it turns white in colour.
