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Silvery grey iron fillings are added to yellow sulphur powder in a test tube. The contents of the test tube were strongly heated until they glow red. On cooling it forms a grey dull solid. Which statement is correct about the contents of the test tube in the experiment? |
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Answer» Silvery grey iron fillings are added to yellow sulphur powder in a test tube. The contents of the test tube were strongly heated until they glow red. On cooling it forms a grey dull solid. Which statement is correct about the contents of the test tube in the experiment?
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