Differentiate between electrical conductivity of copper sulphate solution and copper metal.
During electrical conductivity of copper sulphate solution, the CuSO4 splits into Cu2+ and SO2-4 ions. Whereas, copper metal only conducts electricity but does not undergo any change.
What would you observe in the following case?
When carbon monoxide is passed over heated copper oxide.
Given a reason as to why?
The electrolysis of acidulated water is considered to be an example of catalysis.
Answer the following question:
Name a metal which is found abundantly in the earth’s crust.
Answer the following question:
Write the chemical formulae of one main one of iron and aluminium.
Answer the following question:
Write the constituents of electrolyte for the extraction of aluminium
Write the balanced chemical equation for each of the following reaction:
Sodium thiosulphate is reacted with dilute hydrochloric acid.
During the electrolysis of copper (II) sulphate solution using platinum as cathode and carbon as anode:
i) What do you observe at the cathode and at the anode?
(ii) what change is noticed in the electrolyte?
(iii) write the reaction at the cathode and at the anode?