Chemical Effects of Electric Current

Chemical Effects of Electric Current

8th Grade

12 Qs

quiz-placeholder

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Chemical Effects of Electric Current

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Chemical Effects of Electric Current

Chemical Effects of Electric Current

Assessment

Quiz

Chemistry

8th Grade

Hard

Created by

Reddi Sekhar

Used 1+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is electrolysis?

Electrolysis is the process of using a magnetic field to drive a chemical reaction.

Electrolysis is the process of using heat to drive a chemical reaction.

Electrolysis is the process of using an electric current to drive a non-spontaneous chemical reaction.

Electrolysis is the process of using pressure to drive a chemical reaction.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Name the process in which a metal is coated with a thin layer of another metal using electrolysis.

Electrofusion

Electroplating

Metallic coating

Electrocoating

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can corrosion be prevented in iron?

By using a hammer to break the iron

By applying a protective coating, using sacrificial anodes, or galvanizing the iron.

By exposing to extreme heat

By soaking in water for extended periods

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of using a sacrificial anode in corrosion prevention?

To protect the primary metal structure by corroding itself instead

To increase the rate of corrosion on the primary metal structure

To provide additional strength to the primary metal structure

To attract more moisture to the primary metal structure

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the concept of electroplating.

Electroplating is the process of coating a metal object with a thin layer of another metal using electricity.

Electroplating involves heating metal objects to create a shiny surface.

Electroplating is the process of coating a metal object with a thin layer of plastic using electricity.

Electroplating is a method of removing metal from objects using chemicals.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens at the anode during electrolysis?

Oxidation

Evaporation

Condensation

Reduction

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to use a salt bridge in an electrolytic cell?

To prevent the flow of ions between the two half-cells

To reduce the efficiency of the electrolytic cell

To increase the temperature of the electrolyte

To maintain electrical neutrality and allow the flow of ions between the two half-cells.

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