Name the substance which remains in a test tube after heating ferrous – InterviewSolution

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1.	Name the substance which remains in a test tube after heating ferrous sulphate.
Answer» So the answer is Fe₂O₃, that is ferric oxide which is reddish brown in colorremain in a test tubeafter heating ferrous sulfate. Both SO₂ that is sulfur dioxide and SO₃ that is sulfur trioxide, are gases that are colorless and evolved out.

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