1) What is the standard electrode potential of hydrogen? a) 0 V b) 1 V c) -1 V d) 0.5 V 2) Which metal is used in a standard hydrogen electrode? a) Copper b) Platinum c) Zinc d) Iron 3) What is the unit of electrode potential? a) Joules b) Volts c) Amperes d) Watts 4) What is the role of a salt bridge in a cell? a) Conducts electricity b) Maintains neutrality c) Stores energy d) Prevents corrosion 5) Which ion is reduced in a copper-zinc cell? a) Zinc ion b) Copper ion c) Hydrogen ion d) Sodium ion 6) What is the function of an electrode? a) Transfer electrons b) Store energy c) Generate heat d) Absorb light 7) Which metal has a higher electrode potential than copper? a) Silver b) Iron c) Zinc d) Lead 8) Which element is used as a reference electrode? a) Hydrogen b) Oxygen c) Nitrogen d) Carbon 9) Which ion is oxidized in a zinc-copper cell? a) Zinc ion b) Copper ion c) Hydrogen ion d) Sodium ion 10) Which metal is more reactive than zinc? a) Magnesium b) Copper c) Silver d) Gold 11) Which metal is less reactive than copper? a) Gold b) Zinc c) Iron d) Magnesium

Electrode Potentials A Level Quiz

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