Chemistry 10 Chapter 12 MCQs Tests

In this post, we have prepared 2 MCQs tests of Federal Board Chemistry 10 Chapter 12 MCQs Tests. For more Class 10 Chemistry MCQs Tests visit this page.

Chemistry 10 Chapter 12 MCQs Tests

Practice MCQs Test No 1

297

Class 10 Chemistry
Chapter 12
Practice MCQs Test No 1

1 / 10

Reduction of Ethylchloride (C₂H₅Cl) produces:

Ethyne

Ethylalcohol

Ethene

Ethane

2 / 10

Which of the following is used for dehydrohalogenation of alkyl halides?

Alcoholic KOH

Br₂ water

Al₂O₃

Conc. H₂ SO₄

3 / 10

Which of the following is evolved during the ripening of fruits and vegetables?

Ethane

Ethene

Ethanal

Methane

4 / 10

The reduction of alkyl halides takes place in the presence of:

Zn + HCl

Al₂O₃ at 350°C

Conc. H₂SO₄ at 170°C

Zinc + Dust

5 / 10

Which process produces an alkane?

Hydration

Dehydration

Combustion

Hydrogenation

6 / 10

By dehydration we mean the removal of:

H₂O

H₂

H₂O₂

HCl

7 / 10

Which of the following reacts with concentrated alkaline KMnO₄ to produce oxalic acid?

Ethane

Ethanol

Ethyne

Ethene

8 / 10

The general formula of alkane is:

C_nH_2n+3

C_nH_2n+2

C_nH_2n

C_nH_2n+1

9 / 10

Which of the following is used as domestic fuel?

Ethyne

Chloroform

Ethanol

Methane

10 / 10

Which of the following reacts explosively with methane?

Br₂

Cl₂

F₂

I₂

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The average score is 63%

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Practice MCQs Test No 2

254

Class 10 Chemistry
Chapter 12
Practice MCQs Test No 2

1 / 10

What percent of an alkaline aqueous solution of KMnO₄ is used to detect the presence of an Alkene?

1%

0.01%

0.001%

0.1%

2 / 10

The general formula of alkynes is:

C_nH_2n

C_nH_2n+2

C_nH_2n-2

C_nH_2n-1

3 / 10

__________ is used to manufacture urea fertilizer.

Ethane

Ethyne

Ethene

Methane

4 / 10

The red color of tomatoes is due to an _______ called Lycopene.

Alkene

Alkane

Alkyne

Alcohol

5 / 10

Ethylene is also known as:

Ethyne

Ethane

Methane

Ethene

6 / 10

Acetylene is also known as:

Ethyne

Ethene

Methane

Ethane

7 / 10

Which of the following substance reacts with KMnO₄ to produce ethyleneglycol?

Ethene

Acetylene

Ethane

Ethyne

8 / 10

_________ is used as an anti-freeze.

Ethylene

Vicinal dihalide

Ethyne

Ethylene glycol

9 / 10

Complete the following reaction:

\( CH\equiv CH+{ H }_{ 2 }^{ \quad }\xrightarrow [ Ni ]{ 200-300{°C} } \)

\( { CH }_{ 3 }-{ CH }_{ 3 } \)

\( { CH }_{ 2 }={ CH }_{ 2 } \)

\( { CH }_{ 2 }\equiv { CH }_{ 2 } \)

\( { CH }_{ 2 }-{ CH }_{ 2 } \)

10 / 10

Which product is obtained when chloromethane (or methyl chloride) is reduced?

Ethene

Ethane

Ethyne

Methane

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The average score is 58%

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