Electrolysis RP 1 Quiz

In electrolysis, what is produced at the anode if the anion is in group 7?

• Oxygen

• Hydrogen

• Group 7 element

• Metal

The product at the cathode in the electrolysis of molten sodium chloride is

• Sodium

• Chlorine

• Hydrogen

• Oxygen

What process involves the splitting up of an ionic compound using electricity?

• Electrolysis

• Anode

• Cathode

• Electrolyte

What was done after switching on the electricity supply in the experiment?

• The electrodes were removed

• The observations at each electrode were recorded

• The solution was heated

• The apparatus was dismantled

What is produced at the negative electrode from the discharge of hydrogen ions?

• Oxygen

• Halogen

• Hydrogen

• Metal

What is the product at the positive electrode (anode) when Magnesium sulfate (MgSO₄) solution is used?

• Iodine

• Chlorine

• Oxygen

• Bromine

What is the product at the negative electrode (cathode) when aqueous Zinc bromide (ZnBr₂) is used?

• Copper

• Hydrogen

• Oxygen

• Iodine

What is a positive test for chlorine?

• Bleaching of litmus paper

• Turning litmus paper red

• Turning litmus paper blue

• No change in litmus paper

Why did he put on his safety specs?

• Copper chloride is an irritant.

• Copper chloride is a conductor.

• Copper chloride is a coolant.

• Copper chloride is a lubricant.

What did he decide he needed to do to confirm his assumptions?

• Collect the gases and test them.

• Ignore the results.

• Change the electrodes.

• Add more sodium sulphate.