Major Competitive Exams MCQ & Objective Questions
Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.
What You Will Practise Here
Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams
Exam Relevance
The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.
Common Mistakes Students Make
Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam
FAQs
Question: How can I improve my performance in Major Competitive Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Question: What types of questions should I focus on for these exams?Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.
Question: Are there specific strategies for tackling objective questions?Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.
Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!
Q. Which of the following is a characteristic of carbohydrates?
A.
High energy density
B.
Soluble in organic solvents
C.
Hydrophilic nature
D.
Insoluble in water
Show solution
Solution
Carbohydrates are generally hydrophilic, meaning they are soluble in water.
Correct Answer:
C
— Hydrophilic nature
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Q. Which of the following is a characteristic of cellulose?
A.
Soluble in water
B.
Composed of glucose units
C.
Used for energy storage
D.
Contains α-1,4 glycosidic bonds
Show solution
Solution
Cellulose is composed of glucose units linked by β-1,4 glycosidic bonds and is not soluble in water.
Correct Answer:
B
— Composed of glucose units
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Q. Which of the following is a characteristic of chemisorption?
A.
Reversible process
B.
Low heat of adsorption
C.
Specificity to adsorbate
D.
Occurs at low temperatures
Show solution
Solution
Chemisorption is characterized by its specificity to adsorbate due to the formation of chemical bonds.
Correct Answer:
C
— Specificity to adsorbate
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Q. Which of the following is a characteristic of cis-trans isomers?
A.
Same connectivity, different spatial arrangement
B.
Different connectivity
C.
Same molecular formula, different molecular weight
D.
Different boiling points only
Show solution
Solution
Cis-trans isomers have the same connectivity but differ in the spatial arrangement of groups around a double bond.
Correct Answer:
A
— Same connectivity, different spatial arrangement
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Q. Which of the following is a characteristic of complete flowers? (2022)
A.
Lack of sepals
B.
Presence of both male and female parts
C.
Only male parts
D.
Only female parts
Show solution
Solution
Complete flowers have all four whorls: sepals, petals, stamens, and carpels.
Correct Answer:
B
— Presence of both male and female parts
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Q. Which of the following is a characteristic of composite numbers?
A.
They have exactly two distinct positive divisors.
B.
They are greater than 1.
C.
They cannot be expressed as a product of two smaller natural numbers.
D.
They are always odd.
Show solution
Solution
Composite numbers are defined as natural numbers greater than 1 that are not prime, meaning they have more than two distinct positive divisors.
Correct Answer:
B
— They are greater than 1.
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Q. Which of the following is a characteristic of covalent compounds? (2019)
A.
High melting points
B.
Conduct electricity in solution
C.
Low melting points
D.
Brittle
Show solution
Solution
Covalent compounds generally have low melting points and do not conduct electricity in solution.
Correct Answer:
C
— Low melting points
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Q. Which of the following is a characteristic of cross-linked polymers? (2023)
A.
Flexible
B.
Linear structure
C.
High melting point
D.
Low tensile strength
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Solution
Cross-linked polymers have a three-dimensional network structure, which gives them a high melting point and strength.
Correct Answer:
C
— High melting point
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Q. Which of the following is a characteristic of cycloalkanes?
A.
They are always aromatic
B.
They have a ring structure
C.
They are unsaturated
D.
They contain only single bonds
Show solution
Solution
Cycloalkanes have a ring structure and can be saturated or unsaturated.
Correct Answer:
B
— They have a ring structure
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Q. Which of the following is a characteristic of dicots? (2022)
A.
Single cotyledon
B.
Net-like leaf venation
C.
Scattered vascular bundles
D.
Fibrous root system
Show solution
Solution
Dicots are characterized by having net-like leaf venation and two cotyledons.
Correct Answer:
B
— Net-like leaf venation
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Q. Which of the following is a characteristic of dicotyledons? (2019)
A.
Two cotyledons
B.
Parallel venation
C.
Fibrous root system
D.
Single flower part
Show solution
Solution
Dicotyledons are characterized by having two cotyledons in their seeds.
Correct Answer:
A
— Two cotyledons
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Q. Which of the following is a characteristic of digital communication systems?
A.
Continuous signal representation
B.
Higher susceptibility to noise
C.
Easier encryption and security
D.
Lower data transmission rates
Show solution
Solution
Digital communication systems allow for easier encryption and security measures compared to analog systems.
Correct Answer:
C
— Easier encryption and security
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Q. Which of the following is a characteristic of digital signals?
A.
Continuous in nature
B.
Discrete in nature
C.
More susceptible to noise
D.
Require more bandwidth than analog signals
Show solution
Solution
Digital signals are discrete in nature, representing data in binary form, which makes them less susceptible to noise compared to analog signals.
Correct Answer:
B
— Discrete in nature
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Q. Which of the following is a characteristic of elastic materials? (2023)
A.
They return to original shape after deformation
B.
They permanently deform
C.
They break easily
D.
They are always brittle
Show solution
Solution
Elastic materials return to their original shape after the removal of the applied force.
Correct Answer:
A
— They return to original shape after deformation
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Q. Which of the following is a characteristic of elastomers?
A.
Brittle
B.
Rigid
C.
Elastic
D.
Conductive
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Solution
Elastomers are known for their elastic properties, allowing them to stretch and return to their original shape.
Correct Answer:
C
— Elastic
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Q. Which of the following is a characteristic of enzymes?
A.
They are consumed in reactions
B.
They increase the activation energy
C.
They are specific to substrates
D.
They function at all temperatures
Show solution
Solution
Enzymes are highly specific to their substrates, allowing them to catalyze specific biochemical reactions.
Correct Answer:
C
— They are specific to substrates
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Q. Which of the following is a characteristic of essential amino acids? (2019)
A.
Can be synthesized by the body
B.
Must be obtained from diet
C.
Are not required for protein synthesis
D.
Are only found in animal products
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Solution
Essential amino acids cannot be synthesized by the body and must be obtained through the diet.
Correct Answer:
B
— Must be obtained from diet
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Q. Which of the following is a characteristic of essential oils? (2019)
A.
Water-soluble
B.
Volatile
C.
Non-toxic
D.
All of the above
Show solution
Solution
Essential oils are volatile compounds that are often used for their aromatic properties and therapeutic benefits.
Correct Answer:
B
— Volatile
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Q. Which of the following is a characteristic of ethers? (2019)
A.
Higher boiling point than alcohols
B.
Lower boiling point than alcohols
C.
Soluble in water
D.
Flammable
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Solution
Ethers generally have lower boiling points than alcohols due to the absence of hydrogen bonding.
Correct Answer:
B
— Lower boiling point than alcohols
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Q. Which of the following is a characteristic of eukaryotic cells? (2019)
A.
No nucleus
B.
Circular DNA
C.
Membrane-bound organelles
D.
Binary fission
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Solution
Eukaryotic cells are characterized by the presence of membrane-bound organelles, including a nucleus.
Correct Answer:
C
— Membrane-bound organelles
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Q. Which of the following is a characteristic of eukaryotic genes? (2023)
A.
They are polycistronic
B.
They contain introns
C.
They lack regulatory sequences
D.
They are circular
Show solution
Solution
Eukaryotic genes often contain introns, which are non-coding sequences that are removed during RNA processing.
Correct Answer:
B
— They contain introns
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Q. Which of the following is a characteristic of exponential functions?
A.
They have a constant rate of change.
B.
They grow or decay at a constant percentage rate.
C.
They are always positive.
D.
They can be represented by a straight line.
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Solution
Exponential functions grow or decay at a constant percentage rate, which is a defining characteristic.
Correct Answer:
B
— They grow or decay at a constant percentage rate.
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Q. Which of the following is a characteristic of fibrous proteins?
A.
Soluble in water
B.
Structural role
C.
Globular shape
D.
Enzymatic activity
Show solution
Solution
Fibrous proteins are typically insoluble in water and serve structural roles in cells and tissues.
Correct Answer:
B
— Structural role
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Q. Which of the following is a characteristic of gamma radiation?
A.
It has mass
B.
It is positively charged
C.
It has high penetrating power
D.
It can be deflected by magnetic fields
Show solution
Solution
Gamma radiation is a form of electromagnetic radiation with high penetrating power and no mass or charge.
Correct Answer:
C
— It has high penetrating power
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Q. Which of the following is a characteristic of gases?
A.
Definite shape
B.
Definite volume
C.
Compressibility
D.
Incompressibility
Show solution
Solution
Gases are highly compressible, meaning their volume can change significantly under pressure.
Correct Answer:
C
— Compressibility
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Q. Which of the following is a characteristic of genetically modified organisms (GMOs)? (2023)
A.
They are always harmful to the environment
B.
They contain genes from other species
C.
They cannot reproduce
D.
They are not regulated by any laws
Show solution
Solution
GMOs are organisms whose genetic material has been altered using genetic engineering techniques, often incorporating genes from other species.
Correct Answer:
B
— They contain genes from other species
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Q. Which of the following is a characteristic of geometric isomers?
A.
Different connectivity of atoms
B.
Different spatial arrangement
C.
Different molecular formulas
D.
Different functional groups
Show solution
Solution
Geometric isomers have the same connectivity of atoms but differ in their spatial arrangement.
Correct Answer:
B
— Different spatial arrangement
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Q. Which of the following is a characteristic of gibberellins? (2019)
A.
Inhibition of seed germination
B.
Promotion of flowering
C.
Stimulation of leaf senescence
D.
Inhibition of stem elongation
Show solution
Solution
Gibberellins promote flowering and are also involved in seed germination and stem elongation.
Correct Answer:
B
— Promotion of flowering
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Q. Which of the following is a characteristic of harmonic progression?
A.
The terms are always increasing.
B.
The terms can be expressed as fractions.
C.
The terms are always integers.
D.
The common ratio is constant.
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Solution
Harmonic progression can include fractions, as it is defined through the reciprocals of an arithmetic progression.
Correct Answer:
B
— The terms can be expressed as fractions.
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Q. Which of the following is a characteristic of harmonic progressions?
A.
They can only contain positive numbers.
B.
They can be represented graphically as a straight line.
C.
The difference between consecutive terms is constant.
D.
The sum of the first n terms can be calculated easily.
Show solution
Solution
Harmonic progressions can contain negative numbers, but the terms themselves must be positive to maintain the definition of harmonic sequences.
Correct Answer:
A
— They can only contain positive numbers.
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