Unit 2 AOS 1 - Electrochemical series (9)

In the following electrochemical series, which element is the strongest oxidant?

• Gold ion

• Gold solid

• Lithium ion

• Lithium solid

In the following electrochemical series, which element is the strongest reductant?

• Gold ion

• Gold solid

• Lithium ion

• Lithium solid

Will a redox reaction occur between Calcium solid and silver ions?

• No

• Yes

• Sometimes

• Only in aqueous

Will a redox reaction occur between sodium ions and solid copper

• Only in aqueous solutions

• Sometimes

• No

• Yes

Why does Iron corrode in the presence of oxygen and water?

• Because oxygen and water have stronger bonds than Iron

• Because oxygen and water are stronger oxidants than Iron

• Because oxygen and water are stronger reductants than iron

• Because Iron is highly reactive

When a metal is oxidised, the process is more commonly called?

• Metal oxidation

• Galvanic reaction

• Galvanising

• Corrosion

If Zn2+ wants to undergo reduction and Mg wants to undergo oxidation....

• When they are mixed they will react with the addition of minimal catalyst

• When they are mixed they will spontaneously react because no energy is required to make the reaction happen

• When they are mixed they will not react because too much energy is required to make the reaction happen

• When they are mixed they will react when the temperature is above 25 degress

In this Galvanic cell, where would the oxidation reaction occur?

• Electrolyte

• Cathode

• Anode

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