Meta DescriptionNEET 2027 Part 57 presents NCERT-focused practice questions from Physics, Chemistry and Biology, covering Moving Charges and Magnetism, Aldehydes, Ketones and Carboxylic Acids, and Human Health and Disease. Includes MCQs, quick revision, active recall, concept connections, error analysis and smart revision strategy.SEO KeywordsNEET 2027, NEET Preparation, NEET MCQs, NCERT, Moving Charges and Magnetism, Aldehydes Ketones Carboxylic Acids, Human Health and Disease, Physics MCQ, Chemistry MCQ, Biology MCQ, NEET Revision, NEET PracticeHashtags#NEET2027 #NEETPreparation #NEETMCQ #NCERT #Physics #Chemistry #Biology #NEETAspirants #NEETRevision #NEETPractice #MovingChargesAndMagnetism #Aldehydes #Ketones #CarboxylicAcids #HumanHealthAndDiseaseINTRODUCTION
NEET 2027 Possible Questions Series — Part 57
English Edition
Physics • Chemistry • Biology
NCERT Focus • Concept Building • MCQ Practice • Active Recall • Error Analysis
Meta Description
NEET 2027 Part 57 presents NCERT-focused practice questions from Physics, Chemistry and Biology, covering Moving Charges and Magnetism, Aldehydes, Ketones and Carboxylic Acids, and Human Health and Disease. Includes MCQs, quick revision, active recall, concept connections, error analysis and smart revision strategy.
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NEET 2027, NEET Preparation, NEET MCQs, NCERT, Moving Charges and Magnetism, Aldehydes Ketones Carboxylic Acids, Human Health and Disease, Physics MCQ, Chemistry MCQ, Biology MCQ, NEET Revision, NEET Practice
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#NEET2027 #NEETPreparation #NEETMCQ #NCERT #Physics #Chemistry #Biology #NEETAspirants #NEETRevision #NEETPractice #MovingChargesAndMagnetism #Aldehydes #Ketones #CarboxylicAcids #HumanHealthAndDisease
INTRODUCTION
NEET preparation becomes stronger when concepts are not studied as isolated facts but connected through understanding, recall, practice and revision.
Part 57 focuses on:
Physics — Moving Charges and Magnetism
Chemistry — Aldehydes, Ketones and Carboxylic Acids
Biology — Human Health and Disease
The purpose of these questions is not to predict the exact NEET 2027 paper. Instead, they are designed to strengthen:
NCERT-based understanding
Important concepts
Formula recall
Reaction-based reasoning
Biological facts
MCQ-solving ability
Active recall
Error analysis
Remember the preparation cycle:
Read → Understand → Recall → Practise → Analyse → Revise → Retest
SECTION 1 — PHYSICS
MOVING CHARGES AND MAGNETISM
Moving Charges and Magnetism connects electric current with magnetic effects. Important concepts include magnetic field, Lorentz force, force on a current-carrying conductor, motion of charged particles and magnetic field due to current.
MCQ 1
The SI unit of magnetic field is:
A. Tesla
B. Weber
C. Henry
D. Volt
Answer: A. Tesla
The SI unit of magnetic field or magnetic flux density is Tesla (T).
MCQ 2
The force experienced by a charged particle moving in a magnetic field is:
A. (qE)
B. (qvB\sin\theta)
C. (qV)
D. (q/B)
Answer: B. (qvB\sin\theta)
The magnetic force on a moving charge is:
[ F=qvB\sin\theta ]
where (\theta) is the angle between velocity and magnetic field.
MCQ 3
When a charged particle moves parallel to a magnetic field, the magnetic force is:
A. Maximum
B. Minimum but non-zero
C. Zero
D. Infinite
Answer: C. Zero
For parallel motion:
[ \theta=0^\circ ]
Therefore,
[ F=qvB\sin0^\circ=0 ]
MCQ 4
The force on a current-carrying conductor placed in a magnetic field is:
A. (F=BIL\sin\theta)
B. (F=B/I)
C. (F=BI/L)
D. (F=IL/B)
Answer: A. (F=BIL\sin\theta)
Here:
(B) = magnetic field
(I) = current
(L) = length of conductor
(\theta) = angle between conductor and magnetic field
MCQ 5
The direction of force on a current-carrying conductor in a magnetic field can be determined by:
A. Fleming's left-hand rule
B. Fleming's right-hand rule
C. Lenz's law only
D. Ohm's law
Answer: A. Fleming's left-hand rule
Fleming's left-hand rule helps determine the direction of force on a current-carrying conductor placed in a magnetic field.
MCQ 6
A charged particle moving perpendicular to a uniform magnetic field follows:
A. Straight-line path
B. Circular path
C. Parabolic path
D. Random path
Answer: B. Circular path
When a charged particle enters a uniform magnetic field perpendicular to the field, the magnetic force acts as the centripetal force.
MCQ 7
The magnetic field at the centre of a circular current-carrying loop is proportional to:
A. Current
B. Inverse of current
C. Resistance only
D. Time only
Answer: A. Current
For a circular loop:
[ B=\frac{\mu_0 I}{2R} ]
for a single-turn loop.
Thus, magnetic field is directly proportional to current.
MCQ 8
A charged particle moving in a magnetic field experiences a force that is always:
A. Parallel to its velocity
B. Perpendicular to its velocity
C. Opposite to its velocity
D. Zero in every case
Answer: B. Perpendicular to its velocity
The magnetic force is perpendicular to the velocity of the charged particle. Therefore, magnetic force can change the direction of motion without directly changing the speed.
PHYSICS QUICK REVISION
Remember:
SI unit of magnetic field = Tesla
Magnetic force on charge:
[ F=qvB\sin\theta ]
If charge moves parallel to (B), force = zero
Force on current-carrying conductor:
[ F=BIL\sin\theta ]
Fleming's left-hand rule gives force direction
Charged particle moving perpendicular to (B) follows circular motion
Magnetic field at centre of circular loop:
[ B=\frac{\mu_0 I}{2R} ]
Magnetic force is perpendicular to velocity
Concept Tip
Do not memorize only the equations.
Connect:
Moving Charge → Magnetic Field → Magnetic Force → Direction of Force → Motion
Once this chain becomes clear, many conceptual questions become easier.
SECTION 2 — CHEMISTRY
ALDEHYDES, KETONES AND CARBOXYLIC ACIDS
This chapter is important for understanding carbonyl compounds, functional groups, nomenclature, oxidation, reduction and characteristic reactions.
MCQ 1
The functional group of aldehydes is:
A. (-CHO)
B. (-COOH)
C. (-OH)
D. (-O-)
Answer: A. (-CHO)
Aldehydes contain the (-CHO) functional group.
MCQ 2
The functional group of ketones is:
A. (-CHO)
B. (>C=O)
C. (-COOH)
D. (-OH)
Answer: B. (>C=O)
Ketones contain a carbonyl group in which the carbonyl carbon is attached to two carbon-containing groups.
General structure:
[ R-CO-R' ]
MCQ 3
The functional group of carboxylic acids is:
A. (-OH)
B. (-CHO)
C. (-COOH)
D. (-O-)
Answer: C. (-COOH)
Carboxylic acids contain the carboxyl group (-COOH).
MCQ 4
Which compound generally gives a positive Tollens' test?
A. Aldehyde
B. Ether
C. Alkane
D. Ketone
Answer: A. Aldehyde
Aldehydes generally reduce Tollens' reagent and produce a silver mirror.
MCQ 5
Oxidation of a primary alcohol generally produces:
A. Aldehyde and then carboxylic acid
B. Ether only
C. Alkane only
D. Ketone only
Answer: A. Aldehyde and then carboxylic acid
Under suitable oxidation conditions, a primary alcohol can first form an aldehyde and further oxidation can produce a carboxylic acid.
MCQ 6
Reduction of an aldehyde generally gives:
A. Primary alcohol
B. Ketone
C. Carboxylic acid
D. Ether
Answer: A. Primary alcohol
Aldehyde reduction generally produces a primary alcohol.
MCQ 7
Which compound contains a carbonyl group?
A. Aldehyde
B. Ketone
C. Both A and B
D. Neither A nor B
Answer: C. Both A and B
Both aldehydes and ketones contain the carbonyl group (C=O).
MCQ 8
Carboxylic acids are generally:
A. Acidic
B. Strongly basic
C. Neutral in every situation
D. Inert
Answer: A. Acidic
Carboxylic acids can donate a proton from the (-COOH) group.
CHEMISTRY QUICK REVISION
Remember:
Aldehyde = (-CHO)
Ketone = (>C=O)
Ketone general structure = (R-CO-R')
Carboxylic acid = (-COOH)
Aldehydes generally give Tollens' test
Tollens' test can produce a silver mirror
Primary alcohol → aldehyde → carboxylic acid under suitable oxidation
Aldehyde reduction → primary alcohol
Aldehydes and ketones contain carbonyl groups
Carboxylic acids show acidic character
Concept Tip
Build this chain:
Functional Group → Structure → Reaction → Product → Identification Test
For example:
Aldehyde → Carbonyl Group → Oxidation/Reduction → Characteristic Products → Tollens' Test
Understanding this network is more powerful than memorizing isolated reactions.
SECTION 3 — BIOLOGY
HUMAN HEALTH AND DISEASE
Human Health and Disease is an important Biology chapter covering common diseases, pathogens, immunity, antibodies, vaccines, allergies, AIDS, cancer and health-related concepts.
MCQ 1
Which organism causes malaria?
A. Plasmodium
B. Salmonella
C. Entamoeba
D. Wuchereria
Answer: A. Plasmodium
Malaria is caused by Plasmodium species and transmitted through the bite of an infected female Anopheles mosquito.
MCQ 2
Typhoid is caused by:
A. Salmonella typhi
B. Plasmodium
C. HIV
D. Rhinovirus
Answer: A. Salmonella typhi
Typhoid is caused by the bacterium Salmonella typhi.
MCQ 3
AIDS is caused by:
A. HIV
B. HBV
C. Plasmodium
D. Salmonella
Answer: A. HIV
AIDS is caused by Human Immunodeficiency Virus (HIV).
MCQ 4
Which cells are primarily attacked by HIV?
A. Helper T-lymphocytes
B. Red blood cells
C. Platelets
D. Bone cells
Answer: A. Helper T-lymphocytes
HIV attacks cells of the immune system, particularly helper T-lymphocytes, weakening immune responses.
MCQ 5
Antibodies are mainly produced by:
A. B-lymphocytes
B. Red blood cells
C. Platelets
D. Neurons
Answer: A. B-lymphocytes
B-lymphocytes are involved in humoral immunity and give rise to antibody-producing cells.
MCQ 6
Vaccination generally helps the body by:
A. Developing immune memory
B. Destroying all body cells
C. Increasing blood pressure
D. Stopping respiration
Answer: A. Developing immune memory
Vaccination stimulates the immune system and helps develop immunological memory.
MCQ 7
Which of the following is an example of an autoimmune disease?
A. Rheumatoid arthritis
B. Malaria
C. Typhoid
D. Common cold
Answer: A. Rheumatoid arthritis
In autoimmune diseases, the immune system reacts against the body's own components.
MCQ 8
Which of the following is a common viral disease?
A. Common cold
B. Typhoid
C. Malaria
D. Ringworm
Answer: A. Common cold
Common cold is commonly caused by viruses such as rhinoviruses.
BIOLOGY QUICK REVISION
Remember:
Malaria → Plasmodium
Malaria vector → female Anopheles mosquito
Typhoid → Salmonella typhi
AIDS → HIV
HIV attacks important immune cells including helper T-lymphocytes
B-lymphocytes are associated with antibody production
Vaccination develops immune memory
Rheumatoid arthritis is an autoimmune disease
Common cold is a viral disease
Concept Tip
Connect Biology as:
Pathogen → Disease → Transmission → Target/Effect → Prevention
For example:
HIV → AIDS → Immune System Damage → Reduced Immunity → Prevention and Control
This approach makes factual Biology more meaningful and easier to recall.
ACTIVE RECALL
Close your book and answer these questions from memory.
Physics
What is the SI unit of magnetic field?
What is the magnetic force on a moving charge?
When is magnetic force zero?
What is the force on a current-carrying conductor?
Which rule determines the direction of force on a current-carrying conductor?
What path does a charged particle follow when it moves perpendicular to a uniform magnetic field?
What is the magnetic field at the centre of a circular loop proportional to?
In which direction does magnetic force act relative to velocity?
Chemistry
What is the functional group of aldehydes?
What is the functional group of ketones?
What is the functional group of carboxylic acids?
Which compounds generally give Tollens' test?
What can primary alcohol form on oxidation?
What is formed by reduction of an aldehyde?
Which compounds contain a carbonyl group?
Why are carboxylic acids acidic?
Biology
Which organism causes malaria?
Which organism causes typhoid?
Which virus causes AIDS?
Which important immune cells are attacked by HIV?
Which lymphocytes are associated with antibody production?
What is the major benefit of vaccination?
Give an example of an autoimmune disease.
Give an example of a common viral disease.
Active Recall Rule
Try to answer without looking at the answers first.
If you cannot remember something, mark it and revise that concept from NCERT.
CONCEPT CONNECTION
Physics
Moving Charge → Magnetic Field → Magnetic Force → Direction → Circular/Other Motion
Ask yourself:
Why can a magnetic field change the direction of a charged particle without directly changing its speed?
This question helps connect force, velocity and circular motion.
Chemistry
Functional Group → Molecular Structure → Electron Distribution → Chemical Property → Reaction → Product
Example:
Aldehyde → Carbonyl Group → Oxidation → Carboxylic Acid
and:
Aldehyde → Reduction → Primary Alcohol
The goal is to understand the transformation rather than memorize separate reactions.
Biology
Pathogen → Disease → Transmission → Target/Effect → Immune Response → Prevention
Example:
HIV → Immune System Damage → Reduced Immunity → AIDS → Prevention and Control
This creates a connected memory network.
ERROR ANALYSIS
Every wrong answer should teach you something.
Classify your mistakes as:
1. Concept Error
You did not understand the underlying concept.
2. Recall Error
You studied the fact but could not recall it.
3. Application Error
You knew the concept but could not apply it to the question.
4. Formula/Reaction Error
You used an incorrect formula, reaction or transformation.
5. Careless Error
You misread the question, missed a keyword or answered too quickly.
Error Log
Maintain:
Question → My Answer → Correct Answer → Why I Was Wrong → Correct Concept → Revision Date
Do not simply count your mistakes.
Analyse them.
A mistake that is analysed properly can become a future strength.
SMART REVISION STRATEGY
Physics
Revise in this sequence:
Magnetic Field → Magnetic Force → Force on Current-Carrying Conductor → Motion of Charged Particle → Circular Motion → Magnetic Field Due to Current
Practise:
Formula-based MCQs
Direction-based questions
Conceptual questions
Numerical problems
After solving a numerical, ask:
Did I understand the direction and physical meaning of the force?
Chemistry
Revise in this sequence:
Aldehydes → Ketones → Carboxylic Acids → Carbonyl Group → Oxidation → Reduction → Important Tests → Products
Focus on:
Functional groups
Structures
Nomenclature
Oxidation
Reduction
Tollens' test
Important NCERT reactions
Reaction products
Biology
Revise in this sequence:
Common Diseases → Pathogens → Transmission → Symptoms/Effects → Immunity → Antibodies → Vaccination → AIDS → Cancer → Autoimmune Diseases
Focus on:
Pathogen-disease relationships
Vectors
Immune responses
Antibodies
Vaccines
NCERT examples
Important terminology
MOTIVATION — CONSISTENCY BUILDS CONFIDENCE
NEET preparation is not a race where everything has to be mastered in one day.
Some days will be highly productive.
Other days may feel slow.
That does not mean you are moving backward.
Progress can be small:
One Physics formula understood
One Chemistry reaction corrected
One Biology fact remembered
One difficult MCQ solved
One repeated mistake removed
These small improvements accumulate.
Do not ask only:
“How much did I study?”
Also ask:
“How much did I understand?”
And:
“What mistake will I avoid next time?”
A strong student is not someone who never makes mistakes.
A strong student is someone who learns from mistakes and keeps improving.
When a question goes wrong, do not tell yourself:
“I cannot do this.”
Tell yourself:
“I have found a concept that needs more practice.”
Your preparation can become stronger through:
Understanding → Practice → Correction → Revision → Retesting
You do not need perfect preparation every day.
You need consistent preparation over time.
Keep moving.
One concept at a time.
One question at a time.
One correction at a time.
One revision at a time.
Your effort today is building the confidence you will need tomorrow. 🌱📚
SEVEN-STEP STUDY CYCLE
1. Read
Read NCERT carefully.
2. Understand
Ask why the concept works.
3. Recall
Close the book and reproduce the information.
4. Practise
Solve MCQs, numericals and application-based questions.
5. Analyse
Identify the reason behind every important mistake.
6. Revise
Return to weak concepts.
7. Retest
Test yourself again after an interval.
Remember
Study → Understand → Recall → Practise → Analyse → Revise → Retest
This cycle turns passive reading into active preparation.
IMPORTANT NEET REMINDER
Possible Questions are supplementary practice material.
They do not replace:
NCERT
Latest Official NEET Syllabus
Previous-Year Questions
Regular MCQ practice
Mock Tests
Revision
Error Analysis
Official examination information
Always verify the latest official syllabus and examination information for your NEET attempt.
Use these Possible Questions to strengthen your preparation—not as a guarantee of exact future examination content.
DISCLAIMER
This is independently prepared educational material.
These are not official NEET 2027 questions and are not guaranteed predictions of the actual examination.
No one can reliably guarantee the exact questions that will appear in a future NEET examination.
Students should prioritize:
Latest Official Syllabus + NCERT + Previous-Year Questions + Mock Tests + Regular Revision + Error Analysis
The purpose of this series is educational practice, conceptual reinforcement, active recall and revision.
KEY TAKEAWAYS
Physics — Moving Charges and Magnetism
SI unit of magnetic field = Tesla
(F=qvB\sin\theta)
Parallel motion → magnetic force zero
(F=BIL\sin\theta)
Fleming's left-hand rule determines force direction
Charged particle perpendicular to (B) → circular motion
(B=\frac{\mu_0I}{2R}) for a single circular loop at its centre
Magnetic force is perpendicular to velocity
Chemistry — Aldehydes, Ketones and Carboxylic Acids
Aldehyde = (-CHO)
Ketone = (>C=O)
Ketone = (R-CO-R')
Carboxylic acid = (-COOH)
Aldehydes generally give Tollens' test
Tollens' test → silver mirror
Primary alcohol → aldehyde → carboxylic acid under suitable oxidation
Aldehyde reduction → primary alcohol
Aldehydes and ketones contain carbonyl groups
Carboxylic acids show acidic character
Biology — Human Health and Disease
Malaria → Plasmodium
Malaria vector → female Anopheles mosquito
Typhoid → Salmonella typhi
AIDS → HIV
HIV attacks important immune cells including helper T-lymphocytes
B-lymphocytes are associated with antibody production
Vaccination → immune memory
Rheumatoid arthritis → autoimmune disease
Common cold → viral disease
FINAL REVISION CHECK
Physics
Can I explain:
Moving Charge → Magnetic Field → Magnetic Force → Direction → Motion?
Chemistry
Can I explain:
Functional Group → Structure → Reaction → Product → Identification Test?
Biology
Can I explain:
Pathogen → Disease → Transmission → Immune Response → Prevention?
If yes, your concepts are becoming more connected.
If not, do not worry.
Identify the weak link and revise it.
CONCLUSION
Part 57 covers three important areas:
Physics
Moving Charges and Magnetism
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Biology
Human Health and Disease
The most important lesson is not simply the number of questions you solve.
It is the quality of understanding you build from every question.
In Physics:
Moving Charge → Magnetic Field → Force → Motion
In Chemistry:
Functional Group → Structure → Reaction → Product
In Biology:
Pathogen → Disease → Transmission → Immunity → Prevention
When these connections become strong, recall becomes easier.
When recall becomes stronger, MCQ-solving becomes faster.
When mistakes are analysed, accuracy improves.
When revision is repeated, retention becomes stronger.
So remember:
Read carefully.
Understand deeply.
Recall actively.
Practise regularly.
Analyse honestly.
Revise patiently.
Retest yourself.
You do not have to become perfect in one day.
You only have to become a little better today.
One concept.
One question.
One correction.
One revision.
One step forward.
Keep learning.
Keep practising.
Keep improving.
Your consistent effort today can become your confidence tomorrow.
Stay patient. Stay focused. Keep moving forward. 🌱📚
Add a separate answer key
Strengthen Chemistry reaction practice
Reduce repeated motivational sections
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