Question: In electrolysis, what is produced at the cathode?
Options:
Oxygen gas
Hydrogen gas
Metal ions
Salt
Correct Answer: Hydrogen gas
Solution:
During electrolysis, hydrogen gas is produced at the cathode when water is electrolyzed.
In electrolysis, what is produced at the cathode?
Practice Questions
Q1
In electrolysis, what is produced at the cathode?
Oxygen gas
Hydrogen gas
Metal ions
Salt
Questions & Step-by-Step Solutions
In electrolysis, what is produced at the cathode?
Step 1: Understand what electrolysis is. It is a process that uses electricity to break down a substance into its components.
Step 2: Identify the substance being electrolyzed. In this case, we are looking at water (H2O).
Step 3: Know the two electrodes involved in electrolysis: the anode (positive) and the cathode (negative).
Step 4: During electrolysis of water, the cathode is where reduction occurs, meaning that electrons are gained.
Step 5: At the cathode, water molecules gain electrons and are converted into hydrogen gas (H2).
Step 6: Therefore, the product at the cathode during the electrolysis of water is hydrogen gas.
Electrolysis – The process of using electrical energy to drive a non-spontaneous chemical reaction, typically involving the decomposition of a substance.
Cathode Reaction – In electrolysis, the cathode is the electrode where reduction occurs, leading to the production of substances such as hydrogen gas from water.
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