Carbon And Its Compounds Class 10 Science MCQ Quiz – Test Your Knowledge

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Are you ready to test your understanding of Carbon and Its Compounds? This chapter is crucial for your CBSE Class 10 Science exam, covering covalent bonding, homologous series, functional groups, chemical reactions of carbon compounds, and more!

About the Quiz

Chapter Name: Carbon and Its Compounds
Subject: Science (Chemistry)
Book: NCERT Class 10 Science
Question Type: Multiple Choice Questions (MCQs)
Leaderboard: Yes (Compete with Others!)

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Chapter 4 - Carbon and its Compounds

1 / 15

Which of the following structures correctly represents the electron dot structure of a Nitrogen molecule?

Carbon and Its Compounds Class 10 Science MCQ Quiz – Test Your Knowledge

2 / 15

What is the name and formula of the 2nd member of the homologous series having the general formula CnH2n?

Ethene, C2H4

Butene, C4H8

Pentene, C5H10

Propene, C3H6

3 / 15

Assertion (A): Detergents are more effective cleansing agents than soaps in hard water.

Reason (R): Calcium and magnesium salts of detergents are water-soluble.

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

A is false but R is true.

Both A and R are true but R is not the correct explanation of A.

4 / 15

What is the product of dehydration of ethanol by conc. Sulphuric acid?

Ethanol

Ethanoic acid

Ethane

Ethene

5 / 15

Why does cooking oil decolorize bromine water, whereas butter does not?

Cooking oil is polar, whereas butter is nonpolar.

Cooking oil is unsaturated, whereas butter is saturated.

Cooking oil is saturated, whereas butter is unsaturated.

Cooking oil is nonpolar, whereas butter is polar.

6 / 15

What is the balanced chemical equation for the combustion of ethanol?

C2H5OH + 2O2 → 2CO2 + 3H2O

C2H5OH + 3O2 → 2CO2 + 3H2O

C2H5OH + 4O2 → 2CO2 + 3H2O

C2H5OH + O2 → 2CO2 + 3H2O

7 / 15

When heated at 443K in the presence of conc. H2SO4, which compound forms ethene as the major product?

C2H5OH

C2H4

C2H6

CH3COOH

8 / 15

What is the molecular formula of the organic compound 'A' widely used as a preservative?

C2H4O

C2H6O

C2H4O2

C2H6O2

9 / 15

In the soap micelles

Ionic end of soap is in the interior of the cluster and the carbon chain is out of the cluster.

The ionic end of soap is on the surface of the cluster while the carbon chain is in the interior of the cluster.

Both the ionic end and carbon chain are in the interior of the cluster.

Both the ionic end and carbon chain are on the exterior of the cluster.

10 / 15

When heated at 443K in the presence of conc. H2SO4, ethanol forms ethene as the major product? What is the role played by conc. H2SO4 in this reaction?

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Reducing agent

Oxidizing agent

Catalyst

Dehydrating agent

11 / 15

What happens to blue litmus when it comes into contact with ethanoic acid?

Remains unchanged

Turns blue

Turns red

Turns colorless

12 / 15

Which type of compounds decolorize bromine water?

Unsaturated

Aromatic

Aliphatic

Saturated

13 / 15

What is the major product formed when CH3COOH and C2H5OH react with each other in the presence of conc. H2SO4?

Aldehyde

Ether

Ester

Ketone

14 / 15

What is the general molecular formula of alkynes?

CnH2n

CnHn

CnH2n+2

CnH2n-2

15 / 15

Two statements are given – one labeled Assertion (A) and the other labeled Reason (R). Select the correct answer from the option given below.

Assertion (A): Following are the structural isomers of butane.

Reason (R): Structural isomers have the same molecular formula but they differ in their structures.

A is false but R is true.

Both A and R are true but R is not the correct explanation of A.

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

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The average score is 61%

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Key Topics Covered in the Quiz

✔ Covalent Bonding in Carbon Compounds
✔ Saturated and Unsaturated Hydrocarbons
✔ Functional Groups & Homologous Series
✔ Chemical Properties of Carbon Compounds
✔ Ethanol & Ethanoic Acid – Properties & Uses
✔ Soap and Detergent Action

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