What are the chemical effects of electric current Class 8?

What are the chemical effects of electric current Class 8?

Chemical effect of the electric current: The passage of an electric current through a conducting solution causes chemical reaction. That may cause formation of bubbles of a gas on the electrodes, deposites of metal on electrodes, changes of colour of solutions etc.

What are the three chemical effect of electric current Class 8?

The passage of an electric current through a conducting solution causes chemical reactions. As a result, bubbles of a gas may be formed on the electrodes. Deposits of metal may be seen on electrodes. Changes of colour of solutions may occur.

What is the chemical effect of electricity give some examples of chemical effects Class 8?

The resulting effects are called chemical effects of electric current. An example of the chemical effect is that When an electric current is passed through the solution of a metal salt, such as a solution of copper sulfate, metal gets deposited at the negative electrode because the metal is positively charged.

What is electric current class8?

Answer: Electric Current: The flow of electrons in any material is termed as an electric current. Flow of Electrons in the Matter. Good Conductors of Electricity: The materials which allow the current to pass through them are known as good conductors.

What is chemical effect of electric current?

When electric current is passed through a conducting solution, some chemical reaction takes place in the solution. This is called chemical effect of electric current. Change of colour of solution may occur. …

What is chemical effect of electric current give two examples?

The most common examples of the chemical effect in electric currents are: Gold plating and chromium metal plating to prevent corrosion. 17. Name two metals which are usually electroplated on cheaper metals for making jewellery (or ornaments).

What are the three chemical effect of electric current?

Chemical effects include: Formation of gas bubbles at electrodes. Deposition of metals at electrodes. Changes in solution colour.

What is chemical effect of current give some example of chemical effect?

The passage of an electric current through a conducting solution causes chemical reactions. The process in which chemical reaction takes place in a solution on passing electricity through it is because of chemical effect of current. For example, change in colour of solutions and electroplating.

What is the effect of electric current?

Hence, the three effects of electric current are heating effect, magnetic effect and chemical effect. Note:we have discussed briefly about the effects of current. You need to memorize the effects namely heating effect, magnetic effect and chemical effect.

Who discovered chemical effect of electric current Class 8?

Luigi Galvani , an Italian professor accidently found out that an electric current flowed across two dissimilar metals.

What are examples of chemical effects?

A very good example of the chemical effect is when an electric current is passed through the solution of a metal salt; such as a solution of copper sulfate, copper metal gets deposited at the negative electrode as the metal is positively charged.

What are the three chemical effects of electric current?

Chemical Effects of Electric Current

  • Formation of gas bubbles at electrodes.
  • Deposition of metals at electrodes.
  • Changes in solution colour.