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Chemistry CBSE Live product
Class 9
Is matter around us pure?
Solution: Properties and concentration
1.
Mixture and compound
Question:
1
m.
Choose the correct answer:
Neha heats a mixture of iron and sulphur in a test tube. After heating, a black solid forms. What is the black solid?
Unreacted iron powder
Burnt sulphur
A mixture of iron and sulphur
Iron sulphide compound
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