what is electrolysis

Question

Answer

The process of chemical decomposition of solution on passing electricity is called electrolysis.

Answer

The process of passage of electricity through liquids, called electrolysis .

Answer

The electrolysis of an aqueoud solution of magnesium using inert electrodes produces hydrogen at the cathode and oxygen at the anode and neautral solution of magnesium sulphate remains unaltered by the electrolysis

Answer

process of decomposing or break down when electricity is pass through it

Answer

Thx

Answer

The process of breaking down of salt solution by passing electricity is called electrolysis.

Answer

When an electric current is passed through any conducting liquid a chemical reaction taken place which is known as electrolysis

Answer

Electrolysis is a chemical process that uses an electric current to drive a non-spontaneous reaction. It involves the decomposition of a compound into its constituent elements or ions by passing an electric current through an electrolyte, which is a solution or molten substance that conducts electricity. This process is widely used in various industries and applications such as metal refining, electroplating, water splitting, and the production of chemicals.

How Does Electrolysis Work?

Electrolysis involves the use of an electrolytic cell, which consists of two electrodes—an anode and a cathode—submerged in the electrolyte. The anode is the positive electrode, while the cathode is the negative electrode. When an electric current is passed through the electrolyte, it causes oxidation at the anode and reduction at the cathode.

Anode Reaction:
At the anode, oxidation occurs, which means that electrons are lost. In the case of electrolysis of water, for example, the anode reaction is the oxidation of water molecules:

2H2O(l) → O2(g) + 4H+(aq) + 4e-

In this reaction, water molecules lose electrons, producing oxygen gas, hydrogen ions, and releasing electrons into the circuit.

Cathode Reaction:
At the cathode, reduction occurs, which means that electrons are gained. Continuing with the example of electrolysis of water, the cathode reaction is the reduction of hydrogen ions:

4H+(aq) + 4e- → 2H2(g)

In this reaction, hydrogen ions from the electrolyte gain electrons, resulting in the production of hydrogen gas.

Overall Reaction:
Combining the anode and cathode reactions, the overall reaction for the electrolysis of water can be represented as:

2H2O(l) → 2H2(g) + O2(g)

This demonstrates the decomposition of water into hydrogen and oxygen gases through the process of electrolysis.

Applications of Electrolysis:
Electrolysis finds various applications in different industries and processes, such as:

1. Metal refining: Electrolysis is used to extract metals from their ores, such as aluminum from bauxite and copper from copper sulfide ores.
2. Electroplating: It is used to coat a metal object with a thin layer of another metal, enhancing its appearance and corrosion resistance.
3. Water splitting: Electrolysis is utilized to split water into hydrogen and oxygen gases, which can be used for fuel cells and energy storage.
4. Production of chemicals: Electrolysis plays a crucial role in the production of chemicals like chlorine, sodium hydroxide, and hydrogen peroxide.

Overall, electrolysis is an essential chemical process that harnesses the power of electricity to drive non-spontaneous reactions, resulting in the decomposition or formation of compounds and the extraction or production of various substances.

Answer

the breaking down of ions in chemical solution

Similar Class 8 Doubts

what is electrolysis?

Explain electrolysis of water?

Why if we carry out electrolysis of water , a few drops of sulphuric acid are added to the water carefully.l?

Define electrolysis??

Electrolysis of mgso4?

Top Courses for Class 8View all

Science Class 8

Mathematics (Maths) Class 8

Social Studies (SST) Class 8

English Class 8

Improve Your Calculations: Vedic Maths (English)

Top Courses for Class 8

Top Courses for Class 8

Suggested Free Tests

Related Content

Class 8 Study Material

Class 8 Subjects

Competitive Examinations for Class 8

NCERT Solutions

Reference Books for Class 8

Other Popular Exams

Company