1.

Soham, a class 9 student mixed some iron filings and sulphur in a China dish and heated them strongly to obtain a residue.Which of the following is not a characteristic property of the residue? 

A. It cannot be separated into sulphur and iron filings by normal physical methods.
B. Its properties are completely different from iron and sulphur.
C. Its composition is same throughout.
D. Its appearance is different from iron and sulphur but it shows chemical properties of both iron and sulphur.
Answer» E.


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