Applications of Electrolysis Quiz

Which of the following is NOT an application of electrolysis?

• Electroplating

• Purifying metals

• Extraction of metals

• Combustion of metals

What determines the method used for metal extraction?

• The melting point of the metal

• The weight of the metal

• The reactivity series

• The color of the metal

Which metals exist naturally as metals and do not require extraction?

• Aluminium and magnesium

• Gold and silver

• Iron and copper

• Zinc and tin

How can copper and mercury be extracted from their compounds?

• By electrolysis

• By displacement reactions

• By dissolving in water

• By heating in air

What is the method used to extract metals lower than carbon in the reactivity series?

• Melting

• Displacement reactions

• Electrolysis

• Heating in air

Which metals are extracted using electrolysis?

• Metals that are non-reactive

• Metals higher than carbon in the reactivity series

• Metals lower than carbon in the reactivity series

• Metals that are naturally occurring

Which of the following metals is extracted using electrolysis?

• Copper

• Zinc

• Iron

• Aluminium

What is a major difference between the reactivity series and the electrochemical series?

• Presence of carbon in the reactivity series

• Presence of silver in the electrochemical series

• Presence of hydrogen in the electrochemical series

• Presence of gold in the reactivity series

In the electrochemical series, where is hydrogen located compared to the reactivity series?

• Between zinc and iron

• Above zinc

• Below zinc

• Above iron

Why is it important to memorize the reactivity series?

• To choose the correct method for metal extraction

• To determine the melting point of metals

• To identify the weight of metals

• To know the color of metals