Test: Chemical Effects of Electric Current- 1 - UPSC

The substance through which electric current can flow easily are called good conductor of electricity. Metals are good conductor of electricity.

Electroplating is the process of depositing a thin layer of another metal like zinc to prevent corrosion and make more attractive. Cycle handle is electroplated.

The passage of an electric current through a solution causes chemical effect that leads to deposition of metal on cathode.

The substances through which electric current cannot pass are called bad conductor of electricity. These materials have high resistance.

Television, mixer grinder, Air conditioner  all of them run on electricity. So, here gas burner is the only appliance which doesn't run on electricity. 
Therefore, option (d) gas burner is the correct✔ answer.

Tester is devise used to check whether a particular material allow current to pass through them or not.

Materials that do not let current flow easily are called insulators. Most nonmetal materials such as plastic, wood and rubber are insulators.

Sea water contains small quantity of salt that allow the flow of electric current through them. Distilled water, alcohol and sugar solution do not contain ions or charge particles.