Meta DescriptionNEET 2027 Possible Questions Set – Part 30 with NCERT-based Physics, Chemistry, and Biology MCQs covering Nuclei, Alcohols Phenols and Ethers, and Biodiversity and Conservation, with revision notes, concept boosters, study strategy, motivation, and disclaimer.SEO KeywordsNEET 2027, NEET 2027 preparation, Physics MCQs, Chemistry MCQs, Biology MCQs, NCERT, Nuclei, Alcohols Phenols Ethers, Biodiversity and Conservation, NEET practice questionsHashtags#NEET2027 #NEETPreparation #PhysicsMCQ #ChemistryMCQ #BiologyMCQ #NCERT #NEETAspirants #Biodiversity #MedicalEntrance

NEET 2027 Possible Questions Set – Part 30

English Edition

Meta Description

NEET 2027 Possible Questions Set – Part 30 with NCERT-based Physics, Chemistry, and Biology MCQs covering Nuclei, Alcohols Phenols and Ethers, and Biodiversity and Conservation, with revision notes, concept boosters, study strategy, motivation, and disclaimer.

SEO Keywords

NEET 2027, NEET 2027 preparation, Physics MCQs, Chemistry MCQs, Biology MCQs, NCERT, Nuclei, Alcohols Phenols Ethers, Biodiversity and Conservation, NEET practice questions

Hashtags

#NEET2027 #NEETPreparation #PhysicsMCQ #ChemistryMCQ #BiologyMCQ #NCERT #NEETAspirants #Biodiversity #MedicalEntrance

Introduction

Welcome to Part 30 of the NEET 2027 Possible Questions Series.

This part covers:

⚛️ Physics — Nuclei

🧪 Chemistry — Alcohols, Phenols and Ethers

🧬 Biology — Biodiversity and Conservation

These questions are prepared for conceptual practice, NCERT-based revision, and self-assessment. They are not guaranteed predictions of the actual NEET 2027 examination.

⚛️ Physics

Nuclei

Question 1

The atomic nucleus is composed mainly of:

A. Electrons and photons

B. Protons and neutrons

C. Neutrons and electrons

D. Only protons

Answer: B. Protons and neutrons

Question 2

The mass number of a nucleus is equal to:

A. Number of protons only

B. Number of neutrons only

C. Total number of protons and neutrons

D. Number of electrons and protons

Answer: C. Total number of protons and neutrons

Question 3

The phenomenon in which a heavy nucleus splits into two or more lighter nuclei is called:

A. Nuclear fusion

B. Nuclear fission

C. Radioactive decay

D. Ionisation

Answer: B. Nuclear fission

Question 4

In nuclear fusion:

A. Light nuclei combine to form a heavier nucleus

B. Heavy nuclei always split

C. Electrons combine with photons

D. Atoms lose all their electrons

Answer: A. Light nuclei combine to form a heavier nucleus

Question 5

The stability of a nucleus is strongly related to its:

A. Binding energy

B. Colour

C. Volume of electrons

D. Chemical valency

Answer: A. Binding energy

🧪 Chemistry

Alcohols, Phenols and Ethers

Question 1

The functional group present in alcohols is:

A. –CHO

B. –OH

C. –COOH

D. –NH₂

Answer: B. –OH

Question 2

Phenol contains a hydroxyl group directly attached to:

A. An alkyl carbon

B. An aromatic ring

C. A nitrogen atom

D. A carbonyl carbon

Answer: B. An aromatic ring

Question 3

The general structure of an ether is:

A. R–OH

B. R–COOH

C. R–O–R′

D. R–CHO

Answer: C. R–O–R′

Question 4

Which of the following is an alcohol?

A. CH₃OH

B. CH₃COOH

C. CH₃CHO

D. CH₃OCH₃

Answer: A. CH₃OH

Question 5

Phenol is generally more acidic than aliphatic alcohols because:

A. Phenoxide ion is resonance-stabilised

B. Alcohols contain no oxygen

C. Phenol has no hydrogen

D. Phenol is always ionic

Answer: A. Phenoxide ion is resonance-stabilised

🧬 Biology

Biodiversity and Conservation

Question 1

Biodiversity refers to the variety of:

A. Only animals

B. Only plants

C. Life forms at different levels

D. Only microorganisms

Answer: C. Life forms at different levels

Question 2

The variety of species present in a particular region is known as:

A. Genetic diversity

B. Species diversity

C. Ecosystem diversity

D. Molecular diversity

Answer: B. Species diversity

Question 3

Conservation of species in their natural habitats is called:

A. Ex-situ conservation

B. In-situ conservation

C. Artificial selection

D. Hybridisation

Answer: B. In-situ conservation

Question 4

Which of the following is an example of ex-situ conservation?

A. National park

B. Wildlife sanctuary

C. Botanical garden

D. Biosphere reserve

Answer: C. Botanical garden

Question 5

A species restricted to a particular geographical area is called:

A. Cosmopolitan species

B. Endemic species

C. Migratory species

D. Exotic species

Answer: B. Endemic species

Quick Revision

Physics — Nuclei

Nucleus contains protons and neutrons.

Mass number = protons + neutrons.

Heavy nucleus splitting = fission.

Light nuclei combining = fusion.

Nuclear stability is associated with binding energy.

Chemistry — Alcohols, Phenols and Ethers

Alcohol functional group = –OH.

Phenol has –OH directly attached to an aromatic ring.

Ether = R–O–R′.

CH₃OH is an alcohol.

Phenol is more acidic than many aliphatic alcohols because its conjugate base is resonance-stabilised.

Biology — Biodiversity and Conservation

Biodiversity = variety of life.

Species diversity = variety of species.

Natural habitat conservation = in-situ conservation.

Botanical garden = ex-situ conservation.

Restricted geographical distribution = endemic species.

Concept Booster

1. Nuclei

For NEET Physics, understand the difference between nuclear fission and nuclear fusion.

Nuclear Fission

A heavy nucleus splits into smaller nuclei.

Heavy nucleus → Smaller nuclei + Energy

Nuclear Fusion

Two light nuclei combine to form a heavier nucleus.

Light nuclei + Light nuclei → Heavier nucleus + Energy

The release of energy is connected with changes in nuclear binding energy.

Important topics:

Nuclear size

Nuclear density

Mass defect

Binding energy

Radioactivity

Nuclear fission

Nuclear fusion

2. Alcohols, Phenols and Ethers

This chapter is important because it combines functional-group chemistry with reaction mechanisms.

Focus on:

Classification of alcohols

Nomenclature

Preparation of alcohols

Physical properties

Chemical reactions

Acidity of phenols

Reactions of phenols

Preparation and reactions of ethers

Important concept

The acidity of phenol is strongly related to the stability of the phenoxide ion.

Therefore, understanding resonance is important.

Do not simply memorise:

Phenol > Alcohol in acidity

Understand why.

3. Biodiversity and Conservation

Biodiversity can be considered at different levels:

Genetic Diversity

Variation within a species.

Species Diversity

Variation among species.

Ecosystem Diversity

Variation among ecosystems.

For NEET, also focus on:

Biodiversity hotspots

Species-area relationship

Loss of biodiversity

Causes of biodiversity loss

In-situ conservation

Ex-situ conservation

Endangered species

Extinction

Practice Challenge

Try answering these without looking at the answers.

1.

What particles make up the atomic nucleus?

2.

What is mass number?

3.

What is the difference between nuclear fission and fusion?

4.

What functional group is present in alcohols?

5.

Why is phenol more acidic than many aliphatic alcohols?

6.

What is the general structure of an ether?

7.

What is in-situ conservation?

8.

What is ex-situ conservation?

9.

What is an endemic species?

10.

What are the three major levels of biodiversity?

Daily Study Strategy

Physics

Concept Revision → 30–40 MCQs → Numerical Practice → Error Analysis

For Nuclei, maintain a small formula sheet covering:

Mass defect

Binding energy

Nuclear radius

Radioactive decay

Chemistry

NCERT Reading → Reaction Map → 30–40 MCQs → Mechanism Revision

For Alcohols, Phenols and Ethers, make separate notes for:

Preparation → Properties → Important Reactions → Reagents → Products

This makes reaction revision much easier.

Biology

NCERT Line-by-Line Reading → 60–80 MCQs → Incorrect-Fact Revision

For Biodiversity, create a one-page table containing:

Topic

Key Point

Genetic diversity

Variation within species

Species diversity

Variety of species

Ecosystem diversity

Variety of ecosystems

In-situ

Conservation in natural habitat

Ex-situ

Conservation outside natural habitat

Endemic

Restricted geographical distribution

Important NEET Habit

Do not judge your preparation only by the number of questions you solve.

Track three things:

1. Accuracy

How many questions did you answer correctly?

2. Repeated Mistakes

Which mistakes are appearing again and again?

3. Concept Gaps

Which questions were wrong because the concept itself was unclear?

A student who reduces repeated mistakes is improving—even if the number of questions solved does not increase dramatically.

Motivation

NEET preparation is a long journey.

Some days you may solve many questions correctly.

On other days, you may discover many weaknesses.

Both days are useful.

A high score can show what you already know.

A wrong answer can show what you still need to learn.

Therefore, don't treat mistakes as proof of failure.

Treat them as information.

Every corrected mistake is a small improvement in your preparation.

Your goal should not be:

"I must never make a mistake."

Your better goal is:

"I will not repeat the same mistake again."

That mindset can make your preparation more productive and less stressful.

The Six-Step Cycle

Use this cycle repeatedly:

1. Learn

Understand the NCERT concept.

2. Practise

Solve MCQs.

3. Analyse

Find out why an answer was wrong.

4. Record

Write the important mistake or concept.

5. Revise

Return to the relevant NCERT section.

6. Retest

Solve a similar question later.

This turns mistakes into learning opportunities.

Disclaimer

This material is provided for educational and practice purposes only.

The questions in this series are not official NEET 2027 questions and are not guaranteed predictions of the actual examination.

Students should follow the latest NCERT textbooks, official NEET syllabus, previous-year papers, and reliable educational resources.

Conclusion

Part 30 Focus

⚛️ Nuclei

🧪 Alcohols, Phenols and Ethers

🧬 Biodiversity and Conservation

Remember:

Learn → Practise → Analyse → Correct → Revise → Retest

Do not measure your progress only by how many chapters you have completed.

Measure it by:

How much you understand.

How accurately you answer.

How effectively you correct your mistakes.

How consistently you revise.

A strong NEET preparation is not created in one day.

It is built through consistent effort repeated over many days.

🌟 Best wishes to every NEET 2027 aspirant.

📚 Understand NCERT. Practise MCQs. Analyse mistakes. Revise repeatedly.

🩺 One concept at a time, one question at a time, one improvement at a time.

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