Question

a) Rahul and Manay cach were given a mixture of iron fillings and sulphur powder. Rahul
heated the mixture strongly forming a new substance and Manav left it as it is. Write two
points of difference between the two substances obtained by Rahul and Manav.
b) What would happen if you were to take certain saturated solution at a high
temperature and cool it slowly?​

Answer 1

Answer:

rahul- it has formed iron sulphate

manay- it is just a mixture of iron and sulphur powder

Answer 2

(b) If a saturated solution is cooled below a temperature at which the solution is prepared, then it will lead to a decrease in solubility of the solute. ... Again, if this solution is heated, the crystals would dissolve in the solution and no longer be visible

(a) Rahul obtain iron fillings because sulphur powder evaporated during heating

Manav obtain nothing because he left that solutions as it is.

Hope it help you