Cathode and Anode

The anode is where oxidation occurs in...

• A Galvanic Cell

• A Electrolytic Cell

• Both Galvanic and Electrolytic cells

In electrolytic cell which its electrolyte is copper (II) sulphate, copper are used as electrodes. What is the product at the anode?

• Oxygen gas and water
• Copper metal
• Copper (II) ions
• Hydrogen gas

In an electrolytic cell, the positive electrode is the

• anode, where oxidation occurs
• anode where reduction occurs
• cathode where oxidation occurs
• cathode where reduction occurs

What is an electrolytic cell? 

• a cell that converts chemical energy into electrical energy 
• a cell that converts electrical energy into electrical energy 
• a cell that converts electrical energy into chemical energy 
• A cell that converts kinetic energy into potential energy. 

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Which factors affect amount of metal formed during electrolysis?

• I and II
• I and III
• II and III
• I, II and III

Tags

NGSS.HS-PS3-5

What occurs during electrolysis of a molten salt?

• Electricity is produced by a spontaneous redox reaction
• Electricity cause a non-spontaneous redox reaction to occur
• Electrons flow through the molten salt
• Electrons are removed from both ions of the molten salt

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-4

Object is electroplated with copper using copper(II) sulfate. Which statement is correct?

• Positive electrode increases in mass
• Concentration of Cu²⁺ ions in solution decreases
• Reduction occurs at positive electrode
• Reaction at negative electrode is Cu²⁺ + 2e^– → Cu

Tags

NGSS.HS-PS2-5

Which are used for electroplating of a metal spoon with copper?

• I and II
• I and III
• II and III
• I, II and III

Tags

NGSS.HS-PS3-5

What happens when molten NaCI is electrolysed in electrolytic cell?

• Chlorine is produced at positive electrode
• Sodium ions lose electrons at negative electrode
• Electrons flow through liquid from -ve electrode to +ve electrode
• Oxidation occurs at -ve electrode and reduction at +ve electrode

Which statement correctly describes the 2 electrodes?

• The anode is negative and the cathode is positive
• The anode and cathode are both positive
• The anode is positive and the cathode is negative
• The anode and cathode are both negative.