If one Faraday was to be 30,230 coulombs instead of 96,500 coulombs then charge on an electron is:
Correct answer: C. 0.5 x 10^-19C
- A. 1.5 x 10^-19C
- B. 1 x 10^-19C
- C. 0.5 x 10^-19C
- D. 6.02 x 10^-19C
Explanation
The correct answer is 0.5 x 10-19C. A Faraday represents the total charge of one mole of electrons. Given that the new value of one Faraday is 30,230 C, you can find the charge of a single electron by dividing 30,230 C by Avogadro's number (6.02 x 1023), which yields 5.0 x 10-20 C, equivalent to 0.5 x 10-19 C. Other options do not correctly apply this division and thus represent incorrect values for the charge of a single electron.
Last updated
About Redox Reactions
Redox reactions involve oxidation and reduction occurring together, with electrons transferred between species or oxidation numbers changing. The topic covers assigning oxidation states, identifying oxidizing and reducing agents, balancing redox equations by oxidation number or half-reaction methods, and connecting chemical changes with galvanic and electrolytic cells.
Practise Electrochemistry
696 free Electrochemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A 10 volume solution of H2O2 means_______?
A reaction in which the same element is both oxidised and reduced is called
A solution of Sodium Sulphate was electrolyzed using some inert electrode; the products at the electrodes are:
Aluminum is refined in _ cell.
Any process of chemical decay of metals due to the action of surrounding medium is called__________________?