Redox and Electrode Potentials (OCR A-Level Chemistry A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What does an electrochemical cell transform chemical energy into?
What does an electrochemical cell transform chemical energy into?
Electrical energy
Why must chemicals be kept physically separated in an electrochemical cell?
Why must chemicals be kept physically separated in an electrochemical cell?
To produce useful electrical energy
How is a copper half-cell written in standard notation?
How is a copper half-cell written in standard notation?
Why is platinum used as the electrode in ion/ion half-cells?
Why is platinum used as the electrode in ion/ion half-cells?
It is inert and conducts electrons
Which electrode becomes the negative electrode in an electrochemical cell?
Which electrode becomes the negative electrode in an electrochemical cell?
The more reactive metal
What is the standard electrode potential of the standard hydrogen electrode?
What is the standard electrode potential of the standard hydrogen electrode?
Exactly 0 V
What solution concentration is required for standard conditions?
What solution concentration is required for standard conditions?
1 mol dm⁻³
What is the main function of the salt bridge in an electrochemical cell?
What is the main function of the salt bridge in an electrochemical cell?
Allows ion flow to complete circuit
What does a more negative E° value indicate?
What does a more negative E° value indicate?
Greater tendency to lose electrons