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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284

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Class 9 Chemistry
Chapter 7
Practice
MCQs Test No 1

1 / 10

Galvanizing is:

Coating with Cr

Coating with Cu

Coating with Sn

Coating with Zn

2 / 10

The oxidation state of Mn in KMnO₄ is:

+7

+4

+3

+8

3 / 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

4 / 10

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

O

H₂

ZnO

Zn

5 / 10

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

N₂ to NH₃

N₂ to NO₂

N₂ to HNO₃

N₂ to NO

6 / 10

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

Oxidation occurs at anode

Anions are oxidized at anode

Electrons flow from cathode to anode

Cations are reduced at cathode

7 / 10

Oxidation state of Cr in K₂Cr₂O₇ is:

3

6

Zero

12

8 / 10

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

Chlorine molecule to chlorine ion

Iron (III)ion to iron (II) ion

Oxygen molecule to oxygen ion

Silver atom to silver (I) ion

9 / 10

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

Oxidizing agent

Catalyst

Electrolyte

Reducing agent

10 / 10

Which of the following do not involve electrolytic process?

Refining of copper

Electroplating of steel

Reduction of metal oxide by reducing agent

Manufacture of sodium from NaCl

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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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92

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Class 9 Chemistry
Chapter 7
Test Yourself
MCQs Test No 1

1 / 10

Galvanizing is:

Coating with Cr

Coating with Cu

Coating with Sn

Coating with Zn

2 / 10

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

N₂ to NO₂

N₂ to NO

N₂ to HNO₃

N₂ to NH₃

3 / 10

Which of the following do not involve electrolytic process?

Refining of copper

Reduction of metal oxide by reducing agent

Manufacture of sodium from NaCl

Electroplating of steel

4 / 10

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

Electrolyte

Catalyst

Reducing agent

Oxidizing agent

5 / 10

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

H₂

Zn

O

ZnO

6 / 10

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

Half-cell of an active metal acts as cathode

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

A spontaneous oxidation-reduction reaction generates electricity

A salt bridge connects the two half cells

7 / 10

Oxidation state of Cr in K₂Cr₂O₇ is:

6

12

Zero

3

8 / 10

The oxidation state of Mn in KMnO₄ is:

+4

+8

+3

+7

9 / 10

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

Cations are reduced at cathode

Oxidation occurs at anode

Electrons flow from cathode to anode

Anions are oxidized at anode

10 / 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

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