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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129

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Class 9 Chemistry
Chapter 7
Practice
MCQs Test No 1

1 / 10

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

N₂ to NO₂

N₂ to NH₃

N₂ to HNO₃

N₂ to NO

2 / 10

The oxidation state of Mn in KMnO₄ is:

+7

+3

+8

+4

3 / 10

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

Iron (III)ion to iron (II) ion

Chlorine molecule to chlorine ion

Silver atom to silver (I) ion

Oxygen molecule to oxygen ion

4 / 10

Which of the following do not involve electrolytic process?

Reduction of metal oxide by reducing agent

Refining of copper

Electroplating of steel

Manufacture of sodium from NaCl

5 / 10

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

Catalyst

Oxidizing agent

Reducing agent

Electrolyte

6 / 10

Galvanizing is:

Coating with Cu

Coating with Zn

Coating with Sn

Coating with Cr

7 / 10

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

A spontaneous oxidation-reduction reaction generates electricity

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

A salt bridge connects the two half cells

Half-cell of an active metal acts as cathode

8 / 10

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

Oxidation occurs at anode

Anions are oxidized at anode

Cations are reduced at cathode

Electrons flow from cathode to anode

9 / 10

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

O

ZnO

Zn

H₂

10 / 10

Oxidation state of Cr in K₂Cr₂O₇ is:

3

6

Zero

12

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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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50

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Class 9 Chemistry
Chapter 7
Test Yourself
MCQs Test No 1

1 / 10

Which of the following do not involve electrolytic process?

Refining of copper

Manufacture of sodium from NaCl

Electroplating of steel

Reduction of metal oxide by reducing agent

2 / 10

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

O

H₂

ZnO

Zn

3 / 10

Oxidation state of Cr in K₂Cr₂O₇ is:

6

Zero

12

3

4 / 10

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

A spontaneous oxidation-reduction reaction generates electricity

Half-cell of an active metal acts as cathode

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

A salt bridge connects the two half cells

5 / 10

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

Electrolyte

Reducing agent

Catalyst

Oxidizing agent

6 / 10

Galvanizing is:

Coating with Zn

Coating with Sn

Coating with Cr

Coating with Cu

7 / 10

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

N₂ to NO

N₂ to NH₃

N₂ to NO₂

N₂ to HNO₃

8 / 10

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

Oxidation occurs at anode

Anions are oxidized at anode

Cations are reduced at cathode

Electrons flow from cathode to anode

9 / 10

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

Silver atom to silver (I) ion

Oxygen molecule to oxygen ion

Iron (III)ion to iron (II) ion

Chlorine molecule to chlorine ion

10 / 10

The oxidation state of Mn in KMnO₄ is:

+4

+8

+7

+3

Your score is

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