Chemistry 9 Chapter 7 MCQs Test 1

In Chemistry 9 Chapter 7 MCQs Test 1, there are 10 MCQs. We have prepared 21 multiple-choice questions, which are divided into 2 practice Tests and two Test yourself MCQs Tests. All MCQs are prepared from FBISE Book and Past Papers.

Practice
MCQs Test No 1

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149

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Class 9 Chemistry
Chapter 7
Practice
MCQs Test No 1

1 / 10

Which of the following do not involve electrolytic process?

Manufacture of sodium from NaCl

Refining of copper

Electroplating of steel

Reduction of metal oxide by reducing agent

2 / 10

The oxidation state of Mn in KMnO₄ is:

+7

+3

+8

+4

3 / 10

Which of the following is not true about the Daniel cell?

A salt bridge connects the two half cells

Half-cell contains an element in contact with its ions in aqueous solution

Half-cell of an active metal acts as cathode

A spontaneous oxidation-reduction reaction generates electricity

4 / 10

In which of the following changes the nitrogen atom is reduced?

N₂ to HNO₃

N₂ to NO₂

N₂ to NO

N₂ to NH₃

5 / 10

Consider the given reaction:
H₂S + Cl₂ → 2HCl + S
In the above reaction, H₂S behaves as a/an ________.

Oxidizing agent

Electrolyte

Reducing agent

Catalyst

6 / 10

Which of the following statement is not correct about the galvanic cell?

Anions are oxidized at anode

Cations are reduced at cathode

Electrons flow from cathode to anode

Oxidation occurs at anode

7 / 10

Galvanizing is:

Coating with Cu

Coating with Zn

Coating with Sn

Coating with Cr

8 / 10

Which of the following changes reaction is an example of oxidation?

Oxygen molecule to oxygen ion

Chlorine molecule to chlorine ion

Iron (III)ion to iron (II) ion

Silver atom to silver (I) ion

9 / 10

Oxidation state of Cr in K₂Cr₂O₇ is:

Zero

3

12

6

10 / 10

Which of the following elements in the given reaction is reduced?
ZnO + H₂   →   Zn + H2O

Zn

O

H₂

ZnO

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We have also made a test yourself MCQs Test No 1 for you so that you can prepare yourself well.

Test Yourself
MCQs Test No 1

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55

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Class 9 Chemistry
Chapter 7
Test Yourself
MCQs Test No 1

1 / 10

In which of the following changes the nitrogen atom is reduced?

N₂ to NO₂

N₂ to NO

N₂ to HNO₃

N₂ to NH₃

2 / 10

The oxidation state of Mn in KMnO₄ is:

+4

+7

+3

+8

3 / 10

Galvanizing is:

Coating with Zn

Coating with Cu

Coating with Sn

Coating with Cr

4 / 10

Which of the following changes reaction is an example of oxidation?

Chlorine molecule to chlorine ion

Silver atom to silver (I) ion

Oxygen molecule to oxygen ion

Iron (III)ion to iron (II) ion

5 / 10

Which of the following statement is not correct about the galvanic cell?

Oxidation occurs at anode

Cations are reduced at cathode

Electrons flow from cathode to anode

Anions are oxidized at anode

6 / 10

Consider the given reaction:
H₂S + Cl₂ → 2HCl + S
In the above reaction, H₂S behaves as a/an ________.

Reducing agent

Electrolyte

Oxidizing agent

Catalyst

7 / 10

Which of the following is not true about the Daniel cell?

A salt bridge connects the two half cells

Half-cell contains an element in contact with its ions in aqueous solution

Half-cell of an active metal acts as cathode

A spontaneous oxidation-reduction reaction generates electricity

8 / 10

Oxidation state of Cr in K₂Cr₂O₇ is:

12

6

Zero

3

9 / 10

Which of the following elements in the given reaction is reduced?
ZnO + H₂   →   Zn + H2O

O

Zn

H₂

ZnO

10 / 10

Which of the following do not involve electrolytic process?

Manufacture of sodium from NaCl

Reduction of metal oxide by reducing agent

Electroplating of steel

Refining of copper

Your score is

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