Question

please fast............................​

Answer 1

Answer:

Explanation:

2) Electroplating is the process of plating one metal onto another by hydrolysis, most commonly for decorative purposes or to prevent corrosion of a metal. There are also specific types of electroplating such as copper plating, silver plating, and chromium plating.

USES- Electroplating is widely used in industry and decorative arts to improve the surface qualities of objects—such as resistance to abrasion and corrosion, lubricity, reflectivity, electrical conductivity, or appearance.

3) Dissolve a pinch of common salt in distilled water. When salt is dissolved in distilled water we get salt solution. By passing current through it ,we will find that the magnetic needle of compass shows deflection. Thus, distilled water becomes a good conductor of electricity on dissolving a little of salt in it.

4) a------ A material that allows electricity to pass through it easily is called a conductor. Metals, especially silver, are good electrical conductors. ... They are used to stop electricity from flowing where it is not needed or where it can be dangerous, such as through our bodies.

EXAMPLES - Material such as silver is the best conductor of electricity. ... Copper, Brass, Steel, Gold, and Aluminium are good conductors of electricity. We use them in electric circuits and systems in the form of wires. Mercury is an excellent liquid conductor.

b------ Bad conductors are those materials which do not allow electricity to pass through them easily.  

Example - Copper, Aluminium. Example - Rubber, Wood. Can be used to make electric circuits