Applications of Electrolysis

Electrolysis can be used for:

• electroplating

• electrocution

• electrorefining

• electrometallurgy

Electroplating involves depositing a ______ and _____ layer of metal.

• thin and uniform

• thick and uniform

• thin and non-uniform

• thick and non-uniform

What is typically the electrolyte used during electroplating of silver?

• silver nitrate

• silver chloride

• sodium silver cyanide

• silver cyanide

What is used as the anode during electrorefining of copper?

• pure copper strip

• impure copper block

• copper sulphate

• none of these

Which of the following methods is used to purify metals using electrolysis?

• Electroplating

• Electrorefining

• Electrometallurgy

• Galvanisation

During electroplating, where is the object to be electroplated placed?

• cathode

• electrolyte

• anode

• both anode and cathode

How would you convert a concentrated ore of sodium into metal?

• Calcination

• electrorefining

• roasting

• electrolysis

Which of the following condition is ideal for electroplating?

• Low current for longer time

• High current for longer time

• High current for shorter time

• Low current for shorter time

From which ore is aluminium metal typically extracted?

• Al(OH)3

• AlCl3

• Al2(SO4)3

• Al2O3

What is produced at the cathode during electrolysis of molten potassium bromide?

• potassium metal

• bromine gas

• potassium bromide

• potassium hydroxide