Free Printable Chapter 14-Conductors, Ions, Electrolysis

Worksheets

Chapter 14-Conductors, Ions, Electrolysis

Total questions: 16

Worksheet time: 4mins

Name

Class

Date

Explain why the electrolyte has to be a liquid.

So the ions can move

So the electrons can move

So that it doesn't get too hot

So the fish are ok

Material that allows electric current or heat to flow through easily.

electromagnetic field

conductor

open circuit

electric current

insulator

open circuit

electric current

closed circuit

A material that prevents heat or an electric current from flowing

Insulator

Conductor

Metal

Current

What is a positive ion called?

anion

cation

isotope

covalent

What is a negative ion called?

anion

cation

covalent

isotope

Which particles change the charge in atoms when ions are formed?

Protons

Electrons

Neutrons

What is the name of the negative electrode?

cathode

anode

What is the name of the positive electrode?

cathode

anode

10.

What is the gas produced at the anode during the electrolysis of water?

water

oxygen

hydrogen

chlorine

11.

Full form of LED

light emitting diode

light limiting diode

light storing diode

light electrification diode

12.

An electric current can produce

heating effect only.

chemical effect only.

magnetic effect only.

chemical, heating, and magnetic effects.

13.

Which one of the following solutions will not conduct electricity?

lemon juice

vinegar

tap water

vegetable oil

14.

Which of the following statements is incorrect about the conductivity of water?

Rain water is a good conductor of electricity.

On addition of table salt, water conducts electricity.

On addition of lemon juice, water conducts electricity.

Water becomes a good conductor of electricity when heated.

15.

When current is passed through a mixture of water and lemon juice, bubbles rise from one of the electrodes. The bubbles are rising from the solution because

of the heating effect of current

of the chemical effect of current

current produces magnetic field around the electrodes

current always produces air bubbles when passed through a liquid

16.

An electrolyte is

a metal

a solution

a liquid that conducts electricity

none of these

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Chapter 14-Conductors, Ions, Electrolysis

Total questions: 16

Worksheet time: 4mins

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