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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202

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Class 9 Chemistry
Chapter 7
Practice
MCQs Test No 1

1 / 10

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

O

H₂

Zn

ZnO

2 / 10

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

Oxidizing agent

Electrolyte

Reducing agent

Catalyst

3 / 10

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

N₂ to HNO₃

N₂ to NO₂

N₂ to NO

N₂ to NH₃

4 / 10

The oxidation state of Mn in KMnO₄ is:

+3

+7

+4

+8

5 / 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

6 / 10

Galvanizing is:

Coating with Cu

Coating with Cr

Coating with Zn

Coating with Sn

7 / 10

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

Cations are reduced at cathode

Anions are oxidized at anode

Electrons flow from cathode to anode

Oxidation occurs at anode

8 / 10

Oxidation state of Cr in K₂Cr₂O₇ is:

3

12

Zero

6

9 / 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

10 / 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

A spontaneous oxidation-reduction reaction generates electricity

Half-cell of an active metal acts as cathode

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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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76

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Class 9 Chemistry
Chapter 7
Test Yourself
MCQs Test No 1

1 / 10

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

Cations are reduced at cathode

Anions are oxidized at anode

Electrons flow from cathode to anode

Oxidation occurs at anode

2 / 10

Oxidation state of Cr in K₂Cr₂O₇ is:

3

6

Zero

12

3 / 10

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

Zn

ZnO

O

H₂

4 / 10

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

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

A salt bridge connects the two half cells

A spontaneous oxidation-reduction reaction generates electricity

Half-cell of an active metal acts as cathode

5 / 10

Galvanizing is:

Coating with Zn

Coating with Sn

Coating with Cr

Coating with Cu

6 / 10

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

N₂ to HNO₃

N₂ to NO₂

N₂ to NO

N₂ to NH₃

7 / 10

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

Oxygen molecule to oxygen ion

Iron (III)ion to iron (II) ion

Chlorine molecule to chlorine ion

Silver atom to silver (I) ion

8 / 10

The oxidation state of Mn in KMnO₄ is:

+8

+3

+7

+4

9 / 10

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

Reducing agent

Electrolyte

Catalyst

Oxidizing agent

10 / 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

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