State one relevant observation for each of the following reactions:
The addition of ethyl alcohol to acetic acid in the presence of concentrated Sulphuric acid.
On addition of ethyl alcohol to acetic acid in the presence of conc.H2SO4 at high temperature, sweet smelling ethyl acetate ester is produced, and the process is known as esterification.
C2H5OH + CH3COOH → CH3COOC2H5 + H2O
State one relevant observation for each of the following reactions:
The action of dilute Hydrochloric acid on iron (II) sulphide.
State one relevant observation for each of the following reactions:
The action of Sodium hydroxide solution on ferrous sulphate solution.
State one relevant observation for each of the following reactions:
Burning of ammonia in air.
State one relevant observation for each of the following reactions:
Action of concentrated Sulphuric acid on hydrated copper sulphate
Select the process from the following which matches the given description.
(calcination, roasting, pulverisation, smelting)
Crushing of the ore into a fine powder.
Select the process from the following which matches the given description.
(calcination, roasting, pulverisation, smelting)
Heating of the ore in the absence of air to a high temperature.