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.
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.
When ferrous sulphate reacts with sodium hydroxide, dirty green gelatinous ppt. of ferrous hydroxide is formed along with colourless sodium sulphate.
FeSO4 + 2NaOH → Fe(OH)2↓ + Na2SO4
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.