Question

Question 10.Before the heating when iron filing mixed with sulphur. Is this reaction will show chemical change:​

Answer 1

Answer:

ferrous sulphide (FeS)

Explanation:

When iron filings and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS). It is a new substance which has properties entirely different from Fe and S. Therefore, heating of mixture of iron and sulphur powder is a chemical change.

Answer 2

Answer:

Before the heating when iron filing mixed with sulphur. Is this reaction will show chemical change:

a) Yes

b) No

c) Initially physical then chemical change

d) Initially chemical then physical change

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