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Four students, (A), (B), (C) and (D) observed the colour and solubility of iron, sulphur and iron sulphide in carbon disulphide. The tick mark (✓) represents 'soluble', and cross mark (×) represents 'insoluble' in carbon disulphide. Their observations are tabulatedbelow :
AcademicChemistryNCERTClass 10
Correct answer: (3) (C) Explanation: Iron is extracted, it is of grey color, it reacts with yellow sulphur to form greyish black iron sulphide. From the following table, it can be concluded that only sulfur is soluble in carbon disulfide solution. Hence, student C is correct.  Advertisements
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