An iron ring is to be coated with copper. How can we do this without using electricity ? Solution in Kannada

Classify the following into physical and chemical changes.
Freezing of water

Give an example to explain a skeletal and a balanced chemical equation.

Which among the following is a decomposition reaction ?

take some carbon compounds ( naphthalene , camphor , alcohol ) one by one on a spatula and burn them
* observe the nature of the flame and note whether smoke is produced
* place a metal plate above the flame . Is there a deposition on the plate in case of any of the compounds ?

State one property of each of the following which makes them suitable for the followng:
a. Copper and aluminium for making electric wires
b. Gold, platinium and silver are used to make jewellery
c. Copper to make hiot water tank
d. Graphite in making electrodes
e. Alloys for making bells and strings in musical instruments.

What is the use of glass bulb in an electric bulb? Can we use an electric bulb without the glass bulb in space?

Iron cans used for storage of foodstuffs are coated with

Why are tin coated iron cans used for cool drinks but not cans. Explain.

Silver is a better conductor of electricity than copper. Whey do we use copper wire for conduction of electricity ?

How much electricity is required to coat an iron cup with 2.16 g of Ag?

……………… is a process of coating Zinc on iron sheets by using electric current .

An iron ring is to be coated with copper. How can we do this without using electricity ?

Why do we do electric coating?

Electroplating is one of the practical utilities of electrolysis .Copper can be coated on an iron bangle by this process. Which is the electrolyte used here ?

If the key is to be coated with aluminium instead of copper, what changes do we need to make in the experiment of coating on iron key with copper?