Chemistry · Quick practice · answer shown after each question
Question 1 of 10
A current of 5 A flows for 10 minutes. How much charge passes?
Question 2 of 10
A current of 5 A flowing for 100 s delivers ___ C of charge.
Question 3 of 10
Faraday's second law states that the masses of different substances liberated by the same quantity of electricity are
Question 4 of 10
A current of 1 A flows for 30 minutes. How much charge passes?
Question 5 of 10
A current of 0.5 A flows for 64 minutes. How much charge passes?
Question 6 of 10
How many coulombs are needed to deposit 0.05 mol of zinc from Zn²⁺ ions? (F = 96,500 C/mol)
Question 7 of 10
Faraday's first law states that the mass of a substance liberated at an electrode is
Question 8 of 10
A current of 2 A flowing for 300 s delivers ___ C of charge.
Question 9 of 10
A current of 2 A is passed through a solution containing Ag⁺ ions for 16 minutes. What mass of silver is deposited? (silver = 108, F = 96,500 C/mol)
Question 10 of 10
The same charge that deposits 1 mol of silver will deposit
Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.