Question

Colour of residue of calcium carbonate on thermal decomposition

Answer 1

When a solid Calcium Carbonate is heated strongly in a test tube. A colourless and odourless gas Carbon dioxide is evolved which turns lime water milky and has no change of potassium dichromate paper and a white residue of Calcium Oxide is left behind in test tube

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Answer 2

Answer:

When a solid Calcium Carbonate is heated strongly in a test tube. A colourless and odourless gas Carbon dioxide is evolved which turns lime water milky and has no change of potassium dichromate paper and a white residue of Calcium Oxide is left behind in test tube.

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