Q. What type of reaction occurs when 1-chloropropane reacts with aqueous KOH? (2023)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction of 1-chloropropane with aqueous KOH leads to an elimination reaction, forming propene.
Correct Answer:
B
— Substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with potassium cyanide? (2019)
A.
Nucleophilic substitution
B.
Electrophilic substitution
C.
Addition reaction
D.
Elimination reaction
Show solution
Solution
The reaction between 1-chloropropane and potassium cyanide is a nucleophilic substitution reaction, resulting in the formation of propanenitrile.
Correct Answer:
A
— Nucleophilic substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with sodium cyanide? (2023)
A.
Elimination
B.
Nucleophilic substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction between 1-chloropropane and sodium cyanide is a nucleophilic substitution reaction where the cyanide ion replaces the chlorine atom.
Correct Answer:
B
— Nucleophilic substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with sodium iodide in acetone? (2023)
A.
Elimination
B.
Nucleophilic substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction is a nucleophilic substitution (S_N2) where iodide ion replaces the chlorine atom.
Correct Answer:
B
— Nucleophilic substitution
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Q. What type of reaction occurs when 2-bromopropane is treated with aqueous KOH? (2023)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction of 2-bromopropane with aqueous KOH leads to an elimination reaction, forming propene.
Correct Answer:
A
— Elimination
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Q. What type of reaction occurs when an alcohol is oxidized? (2023)
A.
Reduction
B.
Dehydration
C.
Substitution
D.
Oxidation
Show solution
Solution
Oxidation of alcohols involves the loss of hydrogen or the gain of oxygen, leading to the formation of aldehydes, ketones, or carboxylic acids.
Correct Answer:
D
— Oxidation
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Q. What type of reaction occurs when chlorobenzene is treated with magnesium in dry ether? (2019)
A.
Grignard reaction
B.
Nucleophilic substitution
C.
Electrophilic substitution
D.
Reduction reaction
Show solution
Solution
The reaction of chlorobenzene with magnesium in dry ether forms a Grignard reagent, which is a key step in organic synthesis.
Correct Answer:
A
— Grignard reaction
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Q. What type of reaction occurs when phenol reacts with bromine? (2023)
A.
Electrophilic substitution
B.
Nucleophilic substitution
C.
Addition
D.
Elimination
Show solution
Solution
Phenol undergoes electrophilic substitution when it reacts with bromine, resulting in brominated phenols.
Correct Answer:
A
— Electrophilic substitution
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Q. What type of reproduction is most common in unicellular organisms? (2020)
A.
Sexual reproduction
B.
Asexual reproduction
C.
Biparental reproduction
D.
Alternation of generations
Show solution
Solution
Asexual reproduction is most common in unicellular organisms, allowing for quick population growth.
Correct Answer:
B
— Asexual reproduction
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Q. What type of reproduction is primarily observed in bryophytes? (2020)
A.
Asexual reproduction
B.
Sexual reproduction
C.
Both asexual and sexual reproduction
D.
Vegetative reproduction
Show solution
Solution
Bryophytes can reproduce both sexually, through gametes, and asexually, through fragmentation or budding.
Correct Answer:
C
— Both asexual and sexual reproduction
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Q. What type of reproduction is primarily observed in ferns? (2020)
A.
Asexual reproduction
B.
Sexual reproduction
C.
Vegetative reproduction
D.
All of the above
Show solution
Solution
Ferns primarily reproduce sexually through spores, although they can also reproduce asexually.
Correct Answer:
B
— Sexual reproduction
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Q. What type of reproduction is primarily observed in flowering plants? (2022)
A.
Asexual reproduction
B.
Vegetative propagation
C.
Sexual reproduction
D.
Budding
Show solution
Solution
Flowering plants primarily reproduce sexually through the formation of flowers and seeds.
Correct Answer:
C
— Sexual reproduction
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Q. What type of reproduction is primarily seen in algae? (2019)
A.
Asexual reproduction
B.
Sexual reproduction
C.
Both asexual and sexual reproduction
D.
Vegetative reproduction
Show solution
Solution
Algae can reproduce both asexually and sexually, depending on environmental conditions.
Correct Answer:
C
— Both asexual and sexual reproduction
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Q. What type of reproduction is primarily seen in ferns? (2021)
A.
Asexual reproduction
B.
Sexual reproduction
C.
Both asexual and sexual reproduction
D.
Vegetative reproduction
Show solution
Solution
Ferns primarily reproduce sexually through spores, although they can also reproduce asexually.
Correct Answer:
B
— Sexual reproduction
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Q. What type of reproduction occurs in flowering plants? (2021)
A.
Asexual reproduction
B.
Sexual reproduction
C.
Both asexual and sexual
D.
None of the above
Show solution
Solution
Flowering plants can reproduce both sexually (through seeds) and asexually (through vegetative propagation).
Correct Answer:
C
— Both asexual and sexual
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Q. What type of reproduction occurs in hydra? (2023)
A.
Budding
B.
Binary fission
C.
Fragmentation
D.
Sexual reproduction
Show solution
Solution
Hydra reproduces asexually by budding, where a new individual develops from an outgrowth of the parent.
Correct Answer:
A
— Budding
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Q. What type of reproduction occurs in sponges? (2020)
A.
Asexual reproduction only
B.
Sexual reproduction only
C.
Both asexual and sexual reproduction
D.
None of the above
Show solution
Solution
Sponges can reproduce both asexually through budding and sexually by producing gametes.
Correct Answer:
C
— Both asexual and sexual reproduction
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Q. What type of root system is found in monocots? (2021)
A.
Tap root system
B.
Fibrous root system
C.
Adventitious root system
D.
None of the above
Show solution
Solution
Monocots typically have a fibrous root system, which consists of many thin roots.
Correct Answer:
B
— Fibrous root system
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Q. What type of semiconductor is formed by adding trivalent impurities? (2023)
A.
N-type
B.
P-type
C.
Intrinsic
D.
Superconductor
Show solution
Solution
Adding trivalent impurities (like boron) to a semiconductor creates a p-type semiconductor.
Correct Answer:
B
— P-type
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Q. What type of semiconductor is formed when silicon is doped with arsenic? (2023)
A.
p-type
B.
n-type
C.
Intrinsic
D.
Superconductor
Show solution
Solution
Doping silicon with arsenic, a pentavalent element, creates an n-type semiconductor due to the addition of extra electrons.
Correct Answer:
B
— n-type
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Q. What type of solid is diamond classified as? (2022)
A.
Metallic solid
B.
Ionic solid
C.
Covalent network solid
D.
Molecular solid
Show solution
Solution
Diamond is classified as a covalent network solid due to its strong covalent bonds forming a three-dimensional network.
Correct Answer:
C
— Covalent network solid
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Q. What type of symmetry do most animals in the phylum Cnidaria exhibit? (2023)
A.
Bilateral symmetry
B.
Radial symmetry
C.
Asymmetry
D.
Spherical symmetry
Show solution
Solution
Most cnidarians exhibit radial symmetry, allowing them to interact with their environment from all directions.
Correct Answer:
B
— Radial symmetry
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Q. What type of symmetry do most animals in the phylum Porifera exhibit? (2019)
A.
Bilateral symmetry
B.
Radial symmetry
C.
Asymmetry
D.
Spherical symmetry
Show solution
Solution
Most animals in the phylum Porifera, such as sponges, exhibit asymmetry.
Correct Answer:
C
— Asymmetry
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Q. What type of symmetry is exhibited by organisms in the phylum Cnidaria? (2019)
A.
Bilateral symmetry
B.
Radial symmetry
C.
Asymmetry
D.
Spherical symmetry
Show solution
Solution
Organisms in the phylum Cnidaria, such as jellyfish and corals, exhibit radial symmetry.
Correct Answer:
B
— Radial symmetry
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Q. What type of symmetry is exhibited by organisms in the phylum Platyhelminthes? (2022)
A.
Bilateral symmetry
B.
Radial symmetry
C.
Asymmetry
D.
Spherical symmetry
Show solution
Solution
Platyhelminthes, or flatworms, exhibit bilateral symmetry, which is a key characteristic of this phylum.
Correct Answer:
A
— Bilateral symmetry
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Q. What type of symmetry is exhibited by organisms in the phylum Porifera? (2021)
A.
Bilateral symmetry
B.
Radial symmetry
C.
Asymmetry
D.
Spherical symmetry
Show solution
Solution
Organisms in the phylum Porifera, such as sponges, exhibit asymmetry.
Correct Answer:
C
— Asymmetry
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Q. What type of tissue is responsible for the transport of water in plants? (2019)
A.
Phloem
B.
Xylem
C.
Parenchyma
D.
Collenchyma
Show solution
Solution
Xylem is the type of tissue responsible for the transport of water and minerals from the roots to the rest of the plant.
Correct Answer:
B
— Xylem
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Q. What type of wave is characterized by particle motion being parallel to wave motion? (2023)
A.
Transverse wave
B.
Longitudinal wave
C.
Surface wave
D.
Standing wave
Show solution
Solution
In a longitudinal wave, the particle motion is parallel to the direction of wave propagation.
Correct Answer:
B
— Longitudinal wave
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Q. What type of wave is produced when a vibrating tuning fork is placed on a table? (2022)
A.
Transverse wave
B.
Longitudinal wave
C.
Surface wave
D.
Electromagnetic wave
Show solution
Solution
A vibrating tuning fork produces longitudinal waves in the air, which then can create transverse waves in the surface of the table.
Correct Answer:
B
— Longitudinal wave
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Q. Which alkali metal is known for its vigorous reaction with water? (2022)
A.
Lithium
B.
Sodium
C.
Potassium
D.
Rubidium
Show solution
Solution
Potassium (K) reacts vigorously with water, producing potassium hydroxide and hydrogen gas.
Correct Answer:
C
— Potassium
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NEET MCQ & Objective Questions
The National Eligibility cum Entrance Test (NEET) is a crucial examination for aspiring medical students in India. Scoring well in NEET can open doors to prestigious medical colleges, making it essential for students to prepare effectively. Practicing NEET MCQs and objective questions not only enhances understanding but also boosts confidence, ensuring you are well-prepared for the exam. Engaging with practice questions helps identify important topics and improves your ability to tackle various question formats.
What You Will Practise Here
Human Anatomy and Physiology
Biochemistry and Molecular Biology
Genetics and Evolution
Plant and Animal Physiology
Ecology and Environment
Physics Concepts Relevant to Biology
Important NEET questions on Chemical Bonding and Reactions
Exam Relevance
NEET is aligned with the syllabus of CBSE and various State Boards, ensuring that the topics covered are relevant for both school exams and competitive tests like JEE. Common question patterns include multiple-choice questions that assess conceptual understanding and application of knowledge. By focusing on NEET objective questions, students can familiarize themselves with the exam format and improve their time management skills during the actual test.
Common Mistakes Students Make
Misinterpreting questions due to lack of careful reading.
Overlooking the importance of diagrams and visual aids in biology.
Neglecting to review basic concepts that are foundational for advanced topics.
Confusing similar terms and definitions, especially in biochemistry.
FAQs
Question: How can I improve my NEET MCQ solving skills?Answer: Regular practice with NEET MCQ questions and reviewing explanations for both correct and incorrect answers can significantly enhance your skills.
Question: Are there specific topics I should focus on for NEET preparation?Answer: Yes, focus on high-weightage topics like Human Physiology, Genetics, and Ecology, as they frequently appear in exams.
Start your journey towards success by solving NEET practice MCQs today! Test your understanding, identify your strengths and weaknesses, and prepare effectively for your upcoming exams.