8th science

Find the odd one out

• Distilled water

• Vegetable oil

• Milk

• Honey

LED stands for

• light emitting diode

• light efficient diode

• length emitting diode

• light emitting device

Electroplating prevents

• electric current

• chemical effect

• lightening

• rusting

Select the poor conductors of electricity

• Honey

• Plastic

• Vinegar

• Distilled Water

the method of purification of metals by using electricity is known as

• electroplating

• electrorefining

• electrometal

• none of these

Which one of the following solutions will not conduct electricity?

• lemon juice

• vinegar

• tap water

• vegetable oil

Adding common salt to distilled water makes it

• Good Conductor

• Poor Conductor

• No change

• Both A and B

The metal rods or plates through which the current enters or leaves the conducting solution are called

• electrodes

• electrolytes

• ions

• conductors

What is the full form for CFL

• Combustible fluoride lamp

• Compact fluoride lamp

• Combustible fluorescent lamp

• Compact fluorescent lamp

The process of depositing a layer of any desired metal on another material by means of electricity is called

• Electrolyis

• Electric current

• Electroplating

• Electromagnetism