WorksheetsKSSM_FORM 5_CHAPTER 6_SUB 6.2
Total questions: 10
Worksheet time: 6mins
Please choose the application of electrolysis in industries.
extraction of metals
purification of metals
electroplating of metals
wastewater treatment
Choose the characteristic of purification of metals process
impure metal use as anode
pure metal use as cathode
anode will dissolve
metal will deposit at the cathode
Choose the characteristics of metal electroplating :
metal looks attractive
metal withstand corrosion
metals extracted form ores
metal will dissolve
Choose the characteristics of wastewater treatment in electrocoagulation :
involve electrolysis
involve electroplating
involve coagulation
involve purification
Please state the the technique shown in figure above
electroplating
electrolysis
electrocoagulation
electrochemical
What is happening to anode ( aluminum electrode)?
discharge
ionize
plating
extracted
What is happening at cathode(carbon electrode)?
aluminum ion discharge
hydrogen ion discharge
nothing happen
cathode will dissolve
State 2 ways the pollutant being filtered from the wastewater?
Flotation
Dissolve
Sedimentation
Extraction
Please state the the technique shown in figure above
electroplating
purification of metal
electrocoagulation
electrochemical
Please state the the technique shown in figure above
electroplating
purification of metal
electrocoagulation
electrochemical
