Practice Redox Reactions (3.2.1) - Chapter 3: Electrochemistry

Practise this section

10 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
Define oxidation.
Show hintHide hint
Think about electron movement.
Question 2.
What does reduction entail?
Show hintHide hint
Consider what happens to a charge when it gains electrons.
3Question 3.
What is oxidation?
- A gain of electrons.
- A loss of electrons.
- A neutral process.
Show hintHide hint
Recall the meaning of the term 'oxidation'.
4Question 4.
True or False: In a redox reaction, reduction is the process of gaining electrons.
- True
- False
Show hintHide hint
Think of what happens to the electron count during reduction.
Question 5.
Consider a solution with equal concentrations of Cu²⁺ and Zn²⁺ and their respective solid electrodes. If a galvanic cell is constructed, predict the reactions at the electrodes and calculate the cell potential.
Show hintHide hint
Use standard electrode potentials to find the E°cell.
Question 6.
Determine the Gibbs free energy change for a reaction with E° = 1.5 V and involving 2 moles of electrons. Use the formula ΔG = -nFE.
Show hintHide hint
Plug the values into the Gibbs free energy formula.

6 more questions in this section. Enroll free to practise them all.