Carbon and its Compounds MCQs – NCERT Science Class X Ch.4 | Academia Aeternum
NCERT / Science / Ch.4

Carbon and its Compounds

Covalent Bonds · Hydrocarbons · Functional Groups · Homologous Series · Soaps
MCQ Master Series — 50 expert questions across 3 difficulty tiers.

⚡ Start Quiz 📊 Analytics
50
Questions
6
Topics
24
CBSE Board
16
State Board
10
Olympiad Level
Question Intelligence

Quiz Analytics

A data-driven breakdown of all 50 questions by difficulty, exam origin and topic distribution.

📈 Distribution Overview

50
Total Questions
CBSE Board
24
State Board
16
Olympiad Level
10

🗂 Topic Coverage

Covalent Bonding
18%
Hydrocarbons
20%
Functional Groups
18%
Homologous Series
16%
Chemical Reactions
16%
Soaps & Detergents
12%
24
CBSE Board
16
State Board
10
Olympiad Level
Conceptual Framework

Key Concept Highlights

6 foundational pillars that power every question in this quiz. Understand these, and the answers follow naturally.

🔗
Covalent Bonding
Carbon forms 4 covalent bonds (tetravalency). Catenation: ability to form long chains with other carbons. Single, double, and triple bonds possible.
⛽
Hydrocarbons
Saturated (alkanes CₙH₂ₙ₊₂) and unsaturated (alkenes CₙH₂ₙ, alkynes CₙH₂ₙ₋₂). Unsaturated compounds decolourise bromine water.
🧪
Functional Groups
—OH (alcohol), —COOH (carboxylic acid), —CHO (aldehyde), —CO— (ketone), —Cl (haloalkane). Each group defines chemical behaviour.
📈
Homologous Series
Series of compounds differing by —CH₂—. Same general formula, functional group, and similar chemical properties. Gradual change in physical properties.
🔥
Chemical Reactions
Combustion (complete: CO₂+H₂O), Oxidation (by KMnO₄/K₂Cr₂O₇), Addition (to unsaturated), Substitution (in saturated, UV light).
🫧
Soaps & Detergents
Soap = sodium salt of fatty acids. Long hydrophobic tail + hydrophilic head. Micelle formation removes grease. Detergents work in hard water, soaps don't.
Pedagogical Value

Why MCQs Matter

Multiple-choice questions are not mere guessing games — they are the sharpest diagnostic tool available to a competitive exam aspirant.

WHY
  • Force precise recall — vague conceptual understanding gets exposed immediately
  • Train elimination logic, a critical skill in JEE where partial knowledge suffices
  • Mirror CBSE Board objective and JEE Main Paper 1 formats exactly
  • Build decisive exam temperament — no room for hesitation
  • Reveal misconceptions that long-answer formats often mask
  • Provide instant feedback loops for targeted revision
~12%

of CBSE Science — most MCQ-dense chapter at Class X level

Quick Reference

Important Formula Capsules

6 must-memorise equations that surface repeatedly across CBSE and JEE papers.

Alkane General
\[ C_nH_{2n+2} \quad (n \geq 1) \]
Alkene General
\[ C_nH_{2n} \quad (n \geq 2) \]
Alkyne General
\[ C_nH_{2n-2} \quad (n \geq 2) \]
Combustion
\[ CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O \]
Saponification
\[ \text{Ester} + NaOH \rightarrow \text{Soap} + \text{Glycerol} \]
Ethanol→Ethanoic
\[ C_2H_5OH \xrightarrow{\text{oxidation}} CH_3COOH \]
Learning Outcomes

What You Will Learn

By completing this quiz set you will have exercised all the following competencies.

01 Explain tetravalency and catenation as unique properties of carbon
02 Name and draw structural formulae of alkanes, alkenes, and alkynes up to C5
03 Identify functional groups from a given structural formula
04 Predict the type of reaction (addition/substitution) based on saturation
05 Explain how soap forms micelles and removes dirt from surfaces
06 Distinguish detergents from soaps and explain their behaviour in hard water
Exam Preparation

Strategy & Preparation Tips

5 evidence-based strategies to maximise your score in CBSE Boards and JEE.

01
Strategy
Master the General Formulae
CₙH₂ₙ₊₂, CₙH₂ₙ, CₙH₂ₙ₋₂ — write these 10 times. MCQs test whether you can find the molecular formula from the name.
02
Strategy
Functional Group Flashcards
Make 6 flashcards — one per functional group — with name, formula, example compound, and one NCERT reaction. Review daily.
03
Strategy
Isomers are Trap Questions
CBSE asks for the number of structural isomers of butane, pentane etc. Draw all possibilities systematically before answering.
04
Strategy
Soaps Mechanism in 3 Points
(1) Soap has hydrophilic head and hydrophobic tail. (2) Tail embeds in grease. (3) Micelles are washed away. 3 points = 3 marks.
05
Strategy
Timed Mock
Carbon is a long chapter. Practise these 50 questions in 35 minutes to build stamina for the full CBSE paper.

Ready to Test Your Mastery?

50 questions  ·  Elapsed timer  ·  Instant scored results

⚡ Begin Carbon and its Compounds Quiz
🎯 Knowledge Check

Chemistry — Carbon And Its Compounds

50 Questions Class 10 MCQs
1
Which property allows carbon to form long chains and rings?
2
The valency of carbon is:
3
Covalent bonds are formed by:
4
The general formula of alkanes is:
5
Ethyne belongs to which homologous series?
6
The functional group –OH represents:
7
Which compound belongs to the alcohol group?
8
The formula for ethanoic acid is:
9
The reaction of alcohol with acid to form an ester is called:
10
Soaps form scum in:
11
The ability of carbon to form four bonds is known as:
12
The simplest alkene is:
13
Methane has how many covalent bonds?
14
A homologous series differs by:
15
Which one is a saturated hydrocarbon?
16
IUPAC name of \(\ce{CH3–CH2–CH3}\) is:
17
Which is an oxidising agent?
18
Which structure is spherical?
19
Why is graphite a conductor?
20
The product of saponification is:
21
Name the reaction: \(\ce{CH2=CH2 + H2 \rightarrow CH3–CH3}\)
22
Ethanol reacts with sodium to form:
23
Micelle formation is characteristic of:
24
Carboxylic group is:
25
What type of flame is observed during incomplete combustion?
26
Which is a covalent compound?
27
The IUPAC name of \(\ce{CH3–CH2–OH}\) is:
28
Which compound is used to test unsaturation?
29
Which property is shown by diamond?
30
Which is used as a fuel?
31
The IUPAC name of \(\ce{CH3–CHO}\) is:
32
A compound with same molecular formula but different structure is called:
33
The first member of the alkane series is:
34
Which of the following forms scum?
35
The general formula of alkynes is:
36
Which compound has a pleasant fruity smell?
37
The molecular formula of benzene is:
38
Which hydrocarbon undergoes addition reaction?
39
Which compound is used in cold drinks and vinegar?
40
The common name of ethanoic acid is:
41
Which of the following is a ketone?
42
Which is a monohydric alcohol?
43
The primary product of complete combustion of carbon is:
44
The common name of Methanal is:
45
Which of these is NOT a carbon allotrope?
46
Why are covalent compounds generally insoluble in water?
47
Which metal reacts with ethanol?
48
The number of covalent bonds in ethene is:
49
Which of these is a substitution reaction?
50
Which of the following is used as an antiseptic?
📚
ACADEMIA AETERNUM तमसो मा ज्योतिर्गमय · Est. 2025
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Carbon & Compounds Class 10 MCQs (50 Qs)
Carbon & Compounds Class 10 MCQs (50 Qs) — Complete Notes & Solutions · academia-aeternum.com
Understanding carbon and its vast family of compounds is essential to grasp the fundamentals of organic chemistry at the Class X level. This chapter explains how carbon's tetravalency and catenation make it capable of forming a wide variety of molecules—from simple hydrocarbons to complex substances like alcohols, acids, esters, soaps, and detergents. To help learners strengthen concepts, assess understanding, and prepare effectively for exams, this curated set of multiple-choice questions…
🎓 Class 10 📐 Science 📖 NCERT ✅ Free Access 🏆 CBSE · JEE
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Exam tip: Sharing chapter notes with your study group creates a reinforcement loop. Teaching a concept is the fastest path to mastering it.

Frequently Asked Questions

Carbon is a non-metal with atomic number 6, known for forming a huge variety of compounds due to its tetravalency and catenation ability.

The ability of carbon to form four covalent bonds because it has four electrons in its outermost shell (configuration: 2,4).

Catenation is the property of carbon to form long chains and rings by bonding with other carbon atoms.

Carbon achieves a stable configuration by sharing electrons instead of losing/gaining four electrons, thus forming covalent bonds.

A covalent bond is a bond formed when two atoms share electron pairs.

Compounds containing hydrogen and carbon only, such as methane, ethane, ethene, and ethyne.

Hydrocarbons with single covalent bonds (alkanes), general formula: \(C_nH_{2n+2}\).

Hydrocarbons with double or triple bonds (alkenes & alkynes), formulas: alkenes \(\Rightarrow C_nH_{2n}, alkynes \(Rightarrow C_nH_{2n-2}.

\(C_nH_{2n+2} (e.g., methane \(\ce{CH4}\), ethane \(\ce{C2H6}\)).

\(C_nH_{2n}\) (e.g., ethene \(\ce{C2H4\)).

\(C_nH_{2n-2} (e.g., ethyne \(\ce{C2H2\)).

Atoms or groups that determine the characteristic properties of organic compounds, e.g., –OH (alcohol), –COOH (acid).

Alcohol (–OH), Aldehyde (–CHO), Carboxylic acid (–COOH), Ketone (>C=O), Halogens (–X).

A series of compounds with the same functional group and general formula, differing by \(\ce{–CH2}\)– unit.

Compounds having the same molecular formula but different structural arrangement.

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    Carbon and its Compounds — Learning Resources

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    ACADEMIA AETERNUM तमसो मा ज्योतिर्गमय · Est. 2025
    Sharing this chapter
    Carbon & Compounds Class 10 MCQs (50 Qs)
    Carbon & Compounds Class 10 MCQs (50 Qs) — Complete Notes & Solutions · academia-aeternum.com
    Understanding carbon and its vast family of compounds is essential to grasp the fundamentals of organic chemistry at the Class X level. This chapter explains how carbon's tetravalency and catenation make it capable of forming a wide variety of molecules—from simple hydrocarbons to complex substances like alcohols, acids, esters, soaps, and detergents. To help learners strengthen concepts, assess understanding, and prepare effectively for exams, this curated set of multiple-choice questions…
    🎓 Class 10 📐 Science 📖 NCERT ✅ Free Access 🏆 CBSE · JEE
    Share on
    WhatsApp
    Telegram
    X / Twitter
    Facebook
    Instagram
    Threads
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    LinkedIn
    Quora
    Discord
    Reddit
    Email
    academia-aeternum.com/class-10/science/carbon-and-its-compounds/mcqs/ Copy link
    💡
    Exam tip: Sharing chapter notes with your study group creates a reinforcement loop. Teaching a concept is the fastest path to mastering it.

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