Question

To prepare a mixture and a compound using iron filings and sulphur
powder and distinguish between them on the basis of (a) appearance,
Le, homogeneity and heterogeneity, (b) behaviour towards a magnet,
(c) behaviour towards carbon disulphide as a solvent and (d) effect of heat
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Answer 1

Answer:

first a mixture

(a)we can see both of them separately

heterogeneous.

(b)to separate , we can use magnet iron fillings will get attracted towards it.

(c)we can also use carbon disulphide , to separate , as sulphur will dissolve in it.

(d)when heated , Fe + S = FeS .

new substance formed.

now compound, to make a compound we would heat them as shown above.

(a)homogeneous

b) no reaction as ironsulphide losses its ionic property

c)no raction

d)no raction