7 Questions |
By Lucasyhw | Last updated: Nov 27, 2018
| Total Attempts: 1221
When studying any realm of science, it’s always smart to try to come to terms with the basics before you tackle anything more complex. In this quiz on the process of electrolysis, we aim to do just that – give you a basic understanding of electrolysis in the hopes of expanding it at a later date.
Questions and Answers
Bob is doing an electrolysis experiment and he wants to obtain sodium metal. He has a typical electrolysis set-up with Graphite electrodes. He has a bottle of Sodium Chloride crystals. What should he do with the Sodium Chloride crystals before he starts the experiment , so that he gets the result he wants?
Put the NaCl crystals into the crucible
Dissolve the NaCl crystals in water
Melt the NaCl crystals
Bob wants to have a silver coated knife, he knows he can do it using electrolysis. He prepares Silver Nitrate solution as the electrolyte he is going to use. But firstly what should he put at the cathode and anode so that he gets his silver-plated knife?
Cathode : Knife ; Anode: Silver metal
Cathode: Silver metal ; Anode: Knife
It is fine both ways
In the electrolysis of Dilute Sulfuric Acid, the gas produced at the cathode can rekindle a glowing splint.
In the electrolysis of Copper(II) Sulfate solution, Copper(II) ions are preferentially discharged because of its lower position in the reactivity series as compared to Hydrogen ions.
Which of the following is not an inert electrode?
In the extraction of aluminium from bauxite, carbon anodes are used. Why must the carbon anodes be constantly changed after a certain period of time?
The carbon anodes reacted with the electrolyte
The carbon from the carbon anodes dissolve into the electrolyte and migrates to the cathode
The oxygen liberated at the anode reacts with the carbon anodes
Bob knows why he did not obtain his sodium metal when he electrolysed the sodium chloride solution he prepared. But he is now curious of how come Hydrogen ions can get discharged at the cathode. He came to the conclusion that it is beacause electrons from the current are transferred to the hydrogen ions to make them become hydrogen atoms.
In the scientific study of chemistry, the process of electrolysis involves using direct electric current to prompt a chemical reaction which otherwise would be non-spontaneous. Do you think you can answer all of the questions...
In this quiz on the process of electrolysis, a technique in the scientific field of chemistry wherein direct electric current is used to drive a chemical reaction, we’ll be taking a specific look at the
Questions: 6 | Attempts: 941 | Last updated: Nov 27, 2018
Do you know anything about Electrolysis and Electrolytic cells? Do you think you can pass this quiz? An electrolytic cell utilizes electrical energy to drive a non- spontaneous redox reaction. The cell is often used to...
Questions: 15 | Attempts: 870 | Last updated: Oct 5, 2020
The use of electric energy to bring about a chemical reaction is ____________.