WorksheetsFORM 4 ELECTROLYSIS OUTPUT TEST
Total questions: 10
Worksheet time: 2mins
Which substance is a non-electrolyte?
Sodium bromide solution
dilute nitric acid
glacial hydrochloric acid
potassium nitrate solution
Which substance is an electrolyte?
molten potassium bromide
molten naphthalene
glacial etanoic acid
silver
Which of the following is not the factor affecting the ions to be discharge?
position of ion in electrochemical series
type of electrode
concentration of electrolyte
concentration of water
Which of the following is correct about cathode?
connected to positive terminal
attract negative ions
connected to negative terminal
attract anions
When is the birthday of MS CHEN?
31 AUGUST
17 MAY
3 OCTOBER
9 AUGUST
Which ion will be discharged at cathode in potassium iodide solution?
potassium ion
iodide ion
hydrogen ion
hydroxide ion
What is the ion after zinc in electrochemical series?
magnesium
iron
hydrogen
lead
Which ion will be discharged at anode in dilute hydrochloric acid?
hydrogen ion
chlorine atom
hydroxide ion
chloride ion
What is the ion found in concentrated aluminium nitrate solution?
Al3+,NO3-,H+,OH-
Al3+,NO3-
Al3+,SO42-,H+,OH-
Al3+, H+
Why hydrogen ion is chosen to be discharged at cathode in concentrated sodium sulphate solution?
higher concentration
lower position in electrochemical series
lower concentration
only hydrogen ion is attracted to cathode
