a) What is the purpose of the broken porcelain?

(a)	Acts as a catalyst
(b)	Ensure smooth boiling of the mixture
(c)	Increase the surface areas

b) Why is the mixture heated over a sand bath?

(a)	Ethanol is inflammable
(b)	Ethanol does not catch fire

c) What is the purpose of Sodium hydroxide solution?

(a)	To absorb fumes of concentrated Sulphuric acid
(b)	To remove Sulphur (IV) Oxide
(c)	To remove Carbon(IV) Oxide