Question

the colour of the mixture of iron fillings and sulphur powder after heating changes to

a) yellow

b) brown

c) black

d) green

Answer 1

Heya,

The colour of the mixture of iron fillings and sulphur powder after heating changes to black.

Iron filings and sulphur after heating form iron sulphide turns black in colour.

Answer:- (c) Black

Hope this helps....:)