Question

A green amorphous metal carbonate powder on heating decomposes to evolve carbon dioxide and a black residue is left behind which is the oxide of that metal. Identify the metal

Answer 1

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This type of reaction is called thermal decomposition . Copper carbonate is green and copper oxide is black. You can see a colour change from green to black during the reaction. The carbon dioxide produced can be detected using limewater, which turns milky.

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Answer 2

Answer:

No answer Dude for St. Stephen,s School Habra Students‍