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WorksheetsElectrolysis - Chemistry GRADE 8 iGCSE
Total questions: 15
Worksheet time: 8mins
What is Electrolysis ?
Chemical decomposition due to passage of light through solutions of ionic compounds.
Chemical decomposition due to passage of electricity through solution of ionic compounds.
Chemical decomposition due to passage of heat through solution of ionic compounds.
All of the above
Which of the following is a not a component of an Electrolytic cell?
Electrolyte
Cathode
Anode
Non of the above
Polls of Graphite or Platinum through which an electric current enters the electrolyte are collectively called what ?
Electrodes
Anode
Cathode
Cation
The name given to the positive electrode is called ?
Cathode
Anode
Anion
Cation
The name given to the negative charged electrode is called ?
Anode
Cathode
Anion
Cation
A negatively charged ion is refers to as ?
Anion
Anode
Cation
Cathode
A positively charged ion is called ?
Cathode
Cation
Anode
Anion
During the electrolysis, which of the following Electrodes will Sodium Ions ( Na+) got attracted to ?
Anode
Cathode
All of the anove
Non of the above
During electrolysis, Which of the following electrodes will Bromide ions ( Br-) got attracted to?
Anode
Cathode
All of the above
Non of the above.
Which statement correctly define redox reaction ?
A reaction that involve lose of electrons
A reaction that involve loosing and gaining of electrons
A reaction that involve gain of electrons
Non of the above.
In electrolysis, Oxidation occurs in which of the following electrodes?
Cathode
Anode
Both cathode and Anode
Non of the above
In electrolysis, reduction takes place in which of the following electrodes?
Cathode
Anode
Both cathode and anode
Non of the above
Which particles are responsible for conduction of electricity in electrolyte ?
Free moving electrons
Free moving ions
Free moving proton
Excess neutron
Using reactivity series of metals, Which of the following metals is the most reactive ?
Copper
Magnesium
Sodium
Silver
Using reactivity series of metals, which of the following metals is the least reactive ?
Potassium
Aluminium
Iron
Gold
