Courses

Courses for Kids

Free study material

Store

Talk to our experts

1800-120-456-456

Some Basic Principles Of Organic MCQ with Easy Examples

How to Solve Basic Organic Chemistry MCQs with Concepts and Examples

Prepare for NEET Chemistry with these 20 practice questions on Some Basic Principles Of Organic MCQ. This page covers classification, nomenclature, isomerism, purification, and organic reaction principles common in NEET exams. Each MCQ is designed to match NEET difficulty and helps boost concept retention and test accuracy using real NEET question patterns.

What are MCQs for Some Basic Principles Of Organic Chemistry?

MCQs on Some Basic Principles Of Organic Chemistry test knowledge of IUPAC naming, structural formulae, isomerism, and fundamental organic classification. These questions form a core component of NEET Chemistry, requiring clear concepts for fast, accurate answers. Practicing MCQs refines problem-solving, boosts confidence, and targets frequently tested NEET subtopics for this chapter.

Why Practice NEET MCQs?

Regular NEET MCQ practice ensures you understand organic chemistry basics, recognize question trends, and develop exam speed. Timed quizzes simulate the real NEET environment. Reviewing solutions shows where concepts are strong or need revision. For chapterwise NEET MCQs, Vedantu offers instant answers and analytics to help you track and improve your scores efficiently.

Practice MCQs: Some Basic Principles Of Organic MCQ

Which of the following is the correct IUPAC name for CH₃CH₂COOH?
A. Ethanoic acid
B. Propanoic acid
C. Butanoic acid
D. Propanoate acid
How many structural isomers are possible for C₄H₁₀?
A. 2
B. 3
C. 4
D. 5
Which of the following compounds exhibits position isomerism?
A. Pentane and 2-methylbutane
B. But-1-ene and but-2-ene
C. Ethyne and propene
D. n-butane and isobutane
The functional group in ethanal is:
A. Aldehyde
B. Ketone
C. Alcohol
D. Amine
Which statement best defines a homologous series?
A. Same functional group and successive member by CH₂
B. Different physical and chemical properties
C. Same number of carbon atoms
D. Variable functional groups
What is the hybridization of carbon in ethylene (C₂H₄)?
A. sp
B. sp²
C. sp³
D. sp³d
Which one of these is NOT an IUPAC name?
A. Ethanoic acid
B. Propanone
C. Acetylene
D. Butan-2-ol
Which compound shows chain isomerism with pentane?
A. 2-methylbutane
B. 2-pentanone
C. Cyclopentane
D. 2-methylpropane
Which reagent is commonly used for the purification of organic solids by recrystallization?
A. Water
B. Suitable solvent
C. Hydrochloric acid
D. Sodium chloride
The number of sigma and pi bonds in ethyne (C₂H₂) are:
A. 2 sigma, 2 pi
B. 3 sigma, 2 pi
C. 2 sigma, 1 pi
D. 3 sigma, 1 pi
The compound with molecular formula C₅H₁₂ indicates:
A. Alkene
B. Alkane
C. Alkyne
D. Cycloalkane
In IUPAC nomenclature, the longest carbon chain is chosen on the basis of:
A. Maximum number of double bonds
B. Number of carbon atoms
C. Minimum branches
D. Highest molecular mass
Which technique is NOT used for separation of organic mixtures?
A. Distillation
B. Chromatography
C. Sublimation
D. Titration
Which of the following is an electrophile?
A. NO₂^-
B. Cl₂
C. NH₃
D. SO₃
Which class does CH₃OC₂H₅ belong to?
A. Ether
B. Alcohol
C. Ketone
D. Acid
The IUPAC name of isobutyl chloride is:
A. 2-chlorobutane
B. 1-chloro-2-methylpropane
C. 2-chloro-2-methylpropane
D. 1-chlorobutane
Mark the correct pair of functional isomers:
A. Ethyl alcohol & dimethyl ether
B. Ethyl alcohol & propanone
C. Ethene & propyne
D. Butane & isobutane
Which method estimates nitrogen in an organic compound?
A. Duma’s method
B. Liebig’s method
C. Dessicator method
D. Carius method
What is the order of the C–C bond lengths in alkane, alkene, and alkyne?
A. Alkyne > alkene > alkane
B. Alkane > alkene > alkyne
C. Alkene > alkane > alkyne
D. Alkyne > alkane > alkene
The major product in monochlorination of methane is:
A. CH₂Cl₂
B. CCl₄
C. CH₃Cl
D. CHCl₃

MCQ Answer Key

Q.No.	Answer	Explanation
1	B	CH₃CH₂COOH is propanoic acid.
2	A	C₄H₁₀ forms 2 isomers: n-butane and isobutane.
3	B	But-1-ene and but-2-ene differ by double bond position.
4	A	Ethanal contains an aldehyde functional group.
5	A	A homologous series differs by a CH₂ and has same functional group.
6	B	Each C in C₂H₄ is sp² hybridized.
7	C	Acetylene is a common name; the rest are IUPAC names.
8	A	2-methylbutane is a chain isomer of pentane.
9	B	A suitable solvent is required for recrystallization purification.
10	B	Ethyne has 3 sigma and 2 pi bonds.
11	B	C₅H₁₂ is the general formula for alkanes.
12	B	Longest chain means largest possible carbon count.
13	D	Titration is not a separation technique.
14	D	SO₃ accepts electrons, so is an electrophile.
15	A	Compound with –O– linkage is ether.
16	B	Isobutyl chloride: 1-chloro-2-methylpropane.
17	A	Ethyl alcohol (alcohol) and dimethyl ether (ether) are functional isomers.
18	A	Duma’s method estimates nitrogen in organics.
19	B	Alkane C–C > alkene > alkyne bond length.
20	C	Monochlorination of methane gives chloromethane (CH₃Cl).

Explanations clarify reasoning behind each answer and help students understand important NEET concepts.

How These MCQs Help in NEET

Solving these Some Basic Principles Of Organic MCQ enhances fundamental understanding, boosts speed, and mimics the NEET question pattern. Reviewing answer explanations addresses conceptual gaps. For more chapterwise practice and NEET preparation materials, refer to Vedantu’s Organic Chemistry Important Questions and Chemistry Chapterwise Test sections.

Next Steps and Tips

Practice daily with chapterwise NEET MCQs for better retention.
Time your attempts to build speed and minimize errors.
Use Vedantu’s NEET Chemistry Mock Test for full-syllabus practice.
Review solutions after each test to understand reasoning and fix weak areas.
Attempt chapterwise practice questions for complete NEET revision.

Practising Some Basic Principles Of Organic MCQ ensures core NEET readiness, strengthens concepts, and improves speed. Accurate MCQ training with Vedantu gives you an edge, builds confidence, and helps identify key improvement areas for your NEET Chemistry performance.

FAQs on Some Basic Principles Of Organic MCQ with Easy Examples

1. What are some basic principles of organic chemistry asked in NEET?

Some basic principles of organic chemistry for NEET include foundational concepts essential for understanding and solving MCQs in the exam.

Key topics include:

Nomenclature of organic compounds
Classification and homologous series
Types of isomerism
Structure and bonding of organic molecules
Identification of functional groups
Purification and basic analytical techniques

Focusing on these areas helps strengthen your NEET organic chemistry preparation and score well in chapterwise MCQ tests.

2. How are MCQs structured in NEET chemistry practice tests?

MCQs in NEET chemistry practice tests are single-correct, concept-based questions following the NEET exam pattern.

Typical structure:

Four options per question, with only one correct answer
Coverage across topics: nomenclature, isomerism, basic reactions, and principles
Each correct answer scores +4, each incorrect answer gets -1 (negative marking)
Timed format to build speed and exam stamina

Practicing with this structure helps you adapt to the real NEET exam environment and rules.

3. Are answer keys and solutions provided for all NEET chemistry chapterwise MCQs?

Yes, detailed answer keys and stepwise solutions are provided for every NEET chemistry chapterwise MCQ practice test.

This includes:

Answers for all multiple-choice questions
Step-by-step explanations highlighting key concepts
Clarification of correct and incorrect options
NEET-level solving strategies

Reviewing answer keys boosts retention, correct reasoning, and exam confidence.

4. Why is practicing chapterwise organic MCQs important for NEET?

Practicing chapterwise organic MCQs helps reinforce foundational concepts and improves your ability to solve NEET-level questions quickly and accurately.

Benefits include:

Identifying weak and strong topics for focused revision
Improved speed and accuracy for real exam scenarios
Exposure to NEET-style MCQ patterns
Better retention of organic chemistry principles

Regular practice is key to boosting your NEET chemistry score, especially in high-weightage chapters.

5. Can I download organic chemistry MCQs with answers in PDF?

Yes, many educational platforms offer downloadable PDFs of organic chemistry MCQs with answer keys for NEET preparation.

To make the most of these resources:

Choose chapterwise MCQ PDFs aligned with the latest NEET syllabus
Look for detailed solutions and explanations
Practice offline to complement your online tests

PDFs allow quick revision and portable practice before exams.

6. What is the weightage of organic chemistry in NEET?

Organic chemistry typically carries significant weightage in the NEET chemistry section, often accounting for about 30–35% of chemistry questions.

Expect questions on:

Basic principles and classification
IUPAC nomenclature and isomerism
Reaction mechanisms and important named reactions
Practical organic chemistry (purification, analysis)

Mastering organic chemistry can greatly impact your overall NEET score.

7. How can I improve my score in organic chemistry MCQs for NEET?

To improve your organic chemistry MCQ scores in NEET, focus on key concepts, regular practice, and error analysis.

Effective strategies:

Revise fundamental nomenclature and structures
Practice chapterwise NEET MCQs under timed conditions
Analyze mistakes using detailed answer keys
Make short notes of frequently tested reactions and principles

Consistent, smart revision leads to better accuracy and speed in exams.

8. Which topics are covered under some basic principles of organic chemistry MCQ for NEET?

The chapter ‘Some Basic Principles of Organic Chemistry’ covers topics essential for NEET MCQ practice and scoring.

Main areas include:

Classification and nomenclature of organic compounds
Homologous series and isomerism
Hybridization and bonding in organics
Functional groups and their identification
Basic purification and analytical techniques

Master these topics to excel in NEET organic chemistry MCQs.

9. How is the NEET chemistry chapterwise test scored?

The NEET chemistry chapterwise test follows the official scoring system to accurately reflect your exam readiness.

Scoring pattern:

+4 marks for every correct answer
-1 mark for every incorrect answer (negative marking)
No marks for unanswered questions
Instant analytics showing accuracy and performance by topic

This helps students monitor progress and focus on weak areas efficiently.

10. What is a homologous series in organic chemistry?

A homologous series is a group of organic compounds with the same functional group and a constant difference in molecular formula (usually CH₂).

Key points:

Members differ by one CH₂ group
Similar chemical properties and graduation in physical properties
Examples: Alkanes (CH₄, C₂H₆, C₃H₈), Alcohols (C₂H₅OH, C₃H₇OH)

Knowledge of homologous series is crucial for nomenclature and classification MCQs in NEET.