Chemical Effect...

Which of the following gas is formed at the electrode connected to the negative terminal of the battery?

Which of the following is a chemical effect of electric current?

Which of the following is added to make the copper sulphate solution more conducting?

When electric current is passed through water, hydrogen is deposited over :

Assertion:Chromium plating is done on many objects like car parts, wheel rims and bath taps.
Reason:The chromed layer can be decorative, provide corrosion resistance, ease cleaning procedures, or increase surface hardness.

Which of the following is an example of electroplating?

When electric current is passed through water,  dissociation is indicated  __________.

Chemical effect of electric current may cause :

A tester is used to check the conduction of electricity through two liquids, labeled $$A$$ and $$B$$. It is found that the bulb of the tester glows brightly for liquid $$A$$ while it glows very dimly for liquid $$B$$. You would conclude that:

Tin cans are the tin electroplated on iron. These Tin cans are used to preserve food items. Why not iron cans used without Tin coating?