Olympiad Electrochem

This set of apparatus is used to..?

• Generate electricity
• Discharge metal ion
• electroplate silver spoon
• remove impurities of the spoon

Tags

NGSS.HS-ETS1-3

What is the function of porous pot in Daniel Cell..?

• To complete the circuit
• Enable the movement of ion
• Dont mix the solution

State all the cations in copper(ii) sulphate solution..

• Cu²⁺ and H⁺
• SO₄²⁻ and OH⁻

Electrolysis of copper(ii) sulphate solution produced colourless bubble gas. What is it..?

• Oxygen gas
• Hydrogen gas
• nitrogen gas
• hydroxide gas

Reduction happens at the 

• Spa
  anode
• Cathode
• Salt bridge
• Anode

This electrode in a voltaic cell gains mass

• Anode
• Cathode

This electrode in a voltaic cell loses mass 

• Anode
• Cathode

In a voltaic cell, the half cell that receives anions from the salt bridge is

• Cathode
• Anode

What unit of measurement do we use to measure electrical potential?

• Watts
• Volts
• Amps
• Ohms

In which direction does electricity flow in a voltaic cell (battery)?

• Electrons flow from the cathode to the anode
• Electrons flow from left to right
• Electrons flow from anode to cathode
• Electrons flow from right to left

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5