2. Classify the following as elements or compounds :
Iron, Iron sulphide, Sulphur, Chalk, Washing soda, Sodium, Carbon, Urea
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Answer. Iron,sulphur,sodium and carbon are elements. Iron sulphide, chalk, washing soda, urea are compounds.
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Answer:
iron is compound ionic compound sulphide is compound sulphur is compound chalk is element washing soda is element sodium is element carbon is is compound urea is element
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