Question

a student is given a mixture of iron fillings and sulphur in the ratio of 1 : 2 by weight.he was then asked to heat the mixture over a flame and to observe the colour change. the student will observe that the mixture becomes
a) black b) grey c) yellow d) orange​

Answer 1

Answer:

Grey

Explanation:

It is grey colour

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Answer 2

Answer:

When sulphur and iron filings are mixed and heated they form FeS (ferrous sulphide). The FeS is in black colour.

Fe+S⟶FeS

Black colour compound.

So, the correct option is (B)

Explanation:

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