this is the observation
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Answer:
When a white salt is heated, brown gas is released, the gas turns moist blue litmus paper, red.
When a green salt is heated, colourless gas released, the gas turns lime water chalky.
When a white salt is heated, residue is brown when hot and yellow when cold.
When a white salt is heated, Residue is yellow when hot and white when cold.
Explanation:
I hope it helps.
Sorry if I'm wrong.