Chemical Effects of Electric Current Test

Result

Chemical Effects of Electric Current Test - 6

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Question 1
1 / -0

What is current?

A
The flow of matter

B
The flow of electrons

C
The flow of protons

D
The flow of charge

Solution

Current is the flow of charge.
Question 2
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In electrolytic solutions, which of the following acts as carrier of charge?

A
Protons

B
Electrons

C
Neutrons

D
Ions

Solution

In electrolytic solutions, electrolyte splits into positive and negative ions. The charge is moved through ions.
Question 3
1 / -0

What are insulators?

A
  Materials that conduct electricity

B
  Materials that do not conduct electricity

C
  Materials that conduct electricity only at low temperatures

D
Materials that conduct electricity at room temperature

Solution

Insulators are substances that do not conduct electricity.
Question 4
1 / -0

Which of the following is an insulator?

A
Wood

B
Iron

C
Graphite

D
Silver

Solution

Wood is an insulator while iron, graphite and silver are good conductors of electricity.
Question 5
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Which of the following energy conversions takes place in a cell?

A
Electrical energy into chemical energy

B
Chemical energy into electrical energy

C
Magnetic energy into electrical energy

D
Electrical energy into mechanical energy

Solution

In a cell, chemical energy is converted into electrical energy.
Question 6
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Which of the following are the characteristics of an electrolyte?

A
It has a positive charge.

B
It has a negative charge.

C
It conducts charge without dissociating.

D
It forms positive and negative ions.

Solution

The characteristic of an electrolyte is that it should be able to form positive and negative ions.
Question 7
1 / -0

Which acid is present in lemon juice that acts as an electrolyte?

A
Sulphuric acid

B
Nitric acid

C
Hydrochloric acid

D
Citric acid

Solution

Citric acid is present in the lemon juice which acts as an electrolyte.
Question 8
1 / -0

Which of the following is the electrolyte in a dry cell?

A
Copper sulphate

B
Zinc sulphate

C
Sulphuric acid

D
Ammonium chloride

Solution

The electrolyte in a dry cell is ammonium chloride.
Question 9
1 / -0

In a dry cell, which of the following acts as the positive terminal?

A
Carbon rod

B
Manganese dioxide

C
Manganese dioxide and powdered carbon

D
A metal cap on the carbon rod

Solution

In a dry cell, metal cap on the carbon rod acts as a positive terminal.

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Re-Attempt Weekly Quiz Competition

Chemical Effects of Electric Current Test - 6

Result

Chemical Effects of Electric Current Test - 6

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SHARING IS CARING

Question 1

The flow of matter

The flow of electrons

The flow of protons

The flow of charge

Solution

Question 2

Protons

Electrons

Neutrons

Ions

Solution

Question 3

Materials that conduct electricity

Materials that do not conduct electricity

Materials that conduct electricity only at low temperatures

Materials that conduct electricity at room temperature

Solution

Question 4

Wood

Iron

Graphite

Silver

Solution

Question 5

Electrical energy into chemical energy

Chemical energy into electrical energy

Magnetic energy into electrical energy

Electrical energy into mechanical energy

Solution

Question 6

It has a positive charge.

It has a negative charge.

It conducts charge without dissociating.

It forms positive and negative ions.

Solution

Question 7

Sulphuric acid

Nitric acid

Hydrochloric acid

Citric acid

Solution

Question 8

Copper sulphate

Zinc sulphate

Sulphuric acid

Ammonium chloride

Solution

Question 9

Carbon rod

Manganese dioxide

Manganese dioxide and powdered carbon

A metal cap on the carbon rod

Solution

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