Electrolysis Quiz

What is electrolysis

• Separating a compound into elements using electricity

• Make a compound from elements

What is the positive electrode called?

• Nanode

• Cathode

• Anode

• Electrode

What is the negative electrode called?

• Electrode

• Nanode

• Anode

• Cathode

What is the charge on metal ions?

• Positive

• No charge

• Negative

What is the charge on non-metal ions?

• Positive

• No charge

• Negative

What state does a substance need to be in to carry out electrolysis?

• Solid

• Liquid

• Gas

• Any state

Why can electrolysis only be carried out if a substance is liquid?

• because the ions are fixed

• because the ions are free to move to the electrodes

• because the ions can escape into the atmosphere

If electrolysis is carried out on Zinc Bromide, what are the products?

• Lead and Chlorine

• Copper and Oxygen

• Tin and Fluorine

• Zinc and Bromine

What are the products if electrolysis is carried out on copper chloride?

• Zinc and Bromine

• Copper and Chlorine

• Aluminium and Oxygen

• Sodium and Fluorine

When carrying out the electrolysis of aluminium oxide, why is cryolite added?

• To decrease the melting point of aluminium oxide

• To increase the melting point of aluminium oxide

• To increase the boiling point of aluminium oxide

• To decrease the boiling point of aluminium oxide