Meta DescriptionNEET 2026 Possible Questions Set Part 21 with important Physics, Chemistry, and Biology MCQs, explanations, revision tips, study guidance, disclaimer, SEO keywords, and motivation for NEET medical entrance preparation.SEO KeywordsNEET 2026 questions, NEET MCQ practice, NEET biology MCQ, NEET chemistry MCQ, NEET physics MCQ, NCERT based NEET preparation, medical entrance exam study material, NEET revision strategy, NEET practice set, NEET 2026 mock questionsHashtags#NEET2026 #NEETPreparation #PhysicsMCQ #ChemistryMCQ #BiologyMCQ #NCERT #MedicalEntrance #StudyTips #NEETAspirants #RevisionStrategy
English Educational Blog for NEET Aspirants
Meta Description
NEET 2026 Possible Questions Set Part 21 with important Physics, Chemistry, and Biology MCQs, explanations, revision tips, study guidance, disclaimer, SEO keywords, and motivation for NEET medical entrance preparation.
SEO Keywords
NEET 2026 questions, NEET MCQ practice, NEET biology MCQ, NEET chemistry MCQ, NEET physics MCQ, NCERT based NEET preparation, medical entrance exam study material, NEET revision strategy, NEET practice set, NEET 2026 mock questions
Hashtags
#NEET2026 #NEETPreparation #PhysicsMCQ #ChemistryMCQ #BiologyMCQ #NCERT #MedicalEntrance #StudyTips #NEETAspirants #RevisionStrategy
Introduction
Every chapter you revise and every MCQ you solve takes you one step closer to your NEET goal. Consistency is the key factor that separates successful aspirants from the rest.
A successful NEET preparation strategy includes:
Thorough NCERT study
Daily MCQ practice
Regular revision
Mock test analysis
Conceptual understanding
Time management
This educational series is designed to help students strengthen their concepts and improve examination confidence.
Physics Possible Questions
Chapter: Atoms
The chapter "Atoms" is one of the most important topics in Modern Physics. It includes Bohr's atomic model, atomic spectra, and energy levels.
Important relation:
This equation gives the energy of an electron in the nth orbit of a hydrogen atom.
Question 1
Who proposed the planetary model of the atom?
A. Dalton
B. Thomson
C. Rutherford
D. Chadwick
Answer
C. Rutherford
Question 2
According to Bohr's model, electrons revolve around the nucleus in:
A. Random paths
B. Fixed orbits
C. Spiral paths
D. Straight lines
Answer
B. Fixed orbits
Question 3
The energy of an electron in a hydrogen atom is minimum in:
A. First orbit
B. Second orbit
C. Third orbit
D. Fourth orbit
Answer
A. First orbit
Question 4
The atomic number represents the number of:
A. Neutrons
B. Electrons only
C. Protons
D. Nucleons
Answer
C. Protons
Physics Preparation Tips
Revise Bohr's postulates regularly
Practice numerical problems from atomic spectra
Learn important formulas thoroughly
Focus on NCERT examples
Solve previous year NEET questions
Modern Physics often provides straightforward and scoring questions.
Chemistry Possible Questions
Chapter: Environmental Chemistry
Environmental Chemistry deals with pollution, atmospheric chemistry, and environmental protection.
Important topics:
Air Pollution
Water Pollution
Greenhouse Effect
Ozone Layer
Acid Rain
Question 1
Acid rain is mainly caused by:
A. Nitrogen
B. Sulfur dioxide and nitrogen oxides
C. Oxygen
D. Hydrogen
Answer
B. Sulfur dioxide and nitrogen oxides
Question 2
The ozone layer protects Earth from:
A. Infrared radiation
B. Ultraviolet radiation
C. Radio waves
D. Sound waves
Answer
B. Ultraviolet radiation
Question 3
Which gas is primarily responsible for the greenhouse effect?
A. Carbon dioxide
B. Helium
C. Neon
D. Hydrogen
Answer
A. Carbon dioxide
Question 4
Water pollution can lead to:
A. Improved biodiversity
B. Better soil fertility
C. Health hazards
D. Increased oxygen levels always
Answer
C. Health hazards
Chemistry Revision Strategy
Environmental Chemistry
Learn causes and effects of pollution
Revise environmental terms
Focus on NCERT facts
Practice conceptual MCQs
General Revision
Prepare short notes
Revise important examples
Solve chapter-wise questions
NCERT remains the primary source for Environmental Chemistry.
Biology Possible Questions
Chapter: Evolution
Evolution is a fundamental chapter in Biology and frequently contributes questions in NEET examinations.
Important topics:
Natural Selection
Darwin's Theory
Adaptive Radiation
Hardy-Weinberg Principle
Speciation
Question 1
Who proposed the theory of natural selection?
A. Lamarck
B. Darwin
C. Mendel
D. Morgan
Answer
B. Darwin
Question 2
The process by which new species arise is called:
A. Mutation
B. Speciation
C. Adaptation
D. Migration
Answer
B. Speciation
Question 3
Evolution primarily explains:
A. Cell division
B. Origin of species
C. Photosynthesis
D. Digestion
Answer
B. Origin of species
Question 4
Natural selection favors:
A. Less adapted organisms
B. Weak individuals only
C. Better adapted organisms
D. Random survival only
Answer
C. Better adapted organisms
Biology Study Tips
Read NCERT carefully
Learn important scientists and theories
Understand evolutionary concepts instead of memorizing them
Practice diagram-based questions
Revise terminology regularly
Evolution becomes easier when concepts are connected logically.
Important Advice for NEET Aspirants
Focus on Concepts
Understanding concepts helps solve unfamiliar questions.
Revise Frequently
Repeated revision improves memory retention.
Practice MCQs Daily
Daily practice improves speed and accuracy.
Analyze Errors
Maintain an error notebook and revise it weekly.
Stay Positive
A positive mindset supports long-term preparation.
Daily Study Routine
Morning
Biology revision
Formula revision
Afternoon
Physics numericals
Concept strengthening
Evening
Chemistry MCQ practice
Night
Revision of mistakes
Weak topic review
Planning for the next day
Consistency in routine improves productivity and confidence.
Motivation for Students
NEET preparation is not a sprint; it is a marathon.
You may encounter:
Difficult chapters
Temporary setbacks
Low mock test scores
However:
Every revision strengthens your foundation
Every MCQ improves your accuracy
Every mistake teaches a lesson
Every study session contributes to your success
Trust the process and continue moving forward.
Rapid Fire Questions
Physics
Who proposed the planetary model of the atom?
Answer:
Rutherford
Chemistry
Which gas is primarily responsible for the greenhouse effect?
Answer:
Carbon dioxide
Biology
Who proposed the theory of natural selection?
Answer:
Darwin
Upcoming Topics
Future parts may include:
Nuclei
Solid State
Human Reproduction
Ecosystem Revision
Coordination Compounds Revision
Genetics Revision
These chapters are highly important from the NEET examination perspective.
Common Mistakes Made by Students
Ignoring NCERT
Many easy questions in NEET are directly based on NCERT content.
Not Revising Regularly
Knowledge fades without revision.
Practicing Too Few MCQs
Concepts become stronger through application.
Poor Time Management
Timed practice is essential for examination success.
Losing Confidence
Confidence grows through preparation and consistency.
Smart Revision Strategy
An effective revision strategy includes:
Formula notebooks
Short notes
Flashcards
Daily MCQ practice
Weekly mock tests
Error notebook revision
These methods help improve retention and exam performance.
Disclaimer
This educational blog is created only for learning and practice purposes. The questions mentioned here are not official NEET examination questions and are not guaranteed to appear in the actual examination.
Students should follow official NCERT textbooks and authorized educational resources for complete preparation.
The purpose of this article is to improve conceptual understanding, confidence, and examination-oriented practice among NEET aspirants.
Conclusion
NEET preparation requires patience, discipline, regular revision, and smart study techniques.
This “Possible Questions Set – Part 21” is designed to strengthen concepts, improve confidence, and encourage examination-oriented preparation.
Continue revising, keep solving MCQs, stay disciplined, and believe in your abilities.
Success is built one concept, one chapter, and one focused day at a time.
Written with AI
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