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 an example of a copolymer?
A.
Polyethylene
B.
Nylon-6,6
C.
Polystyrene
D.
Polyvinyl chloride
Show solution
Solution
Nylon-6,6 is a copolymer made from two different monomers: hexamethylenediamine and adipic acid.
Correct Answer:
B
— Nylon-6,6
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Q. Which of the following is an example of a crystalline solid?
A.
Sugar
B.
Glass
C.
Rubber
D.
Plastic
Show solution
Solution
Sugar is an example of a crystalline solid, characterized by a well-ordered structure.
Correct Answer:
A
— Sugar
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Q. Which of the following is an example of a decomposer? (2023)
A.
Fungi
B.
Grass
C.
Lion
D.
Insect
Show solution
Solution
Fungi are decomposers that break down dead organic matter, returning nutrients to the soil.
Correct Answer:
A
— Fungi
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Q. Which of the following is an example of a density-dependent factor affecting population growth? (2021)
A.
Natural disasters
B.
Disease
C.
Climate change
D.
Habitat destruction
Show solution
Solution
Density-dependent factors, such as disease, have a greater effect as the population density increases.
Correct Answer:
B
— Disease
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Q. Which of the following is an example of a dihybrid cross? (2019)
A.
Aa x Aa
B.
AaBb x AaBb
C.
AA x aa
D.
Aa x aa
Show solution
Solution
A dihybrid cross involves two traits, and AaBb x AaBb is an example of such a cross.
Correct Answer:
B
— AaBb x AaBb
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Q. Which of the following is an example of a disproportionation reaction?
A.
2H2O2 → 2H2O + O2
B.
Zn + CuSO4 → ZnSO4 + Cu
C.
2Na + Cl2 → 2NaCl
D.
C + O2 → CO2
Show solution
Solution
In the reaction 2H2O2 → 2H2O + O2, hydrogen peroxide is both oxidized and reduced.
Correct Answer:
A
— 2H2O2 → 2H2O + O2
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Q. Which of the following is an example of a genetically modified organism used in agriculture? (2023)
A.
Golden rice
B.
Organic wheat
C.
Traditional maize
D.
Heritage tomatoes
Show solution
Solution
Golden rice is a genetically modified organism enriched with vitamin A to combat malnutrition.
Correct Answer:
A
— Golden rice
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Q. Which of the following is an example of a genetically modified organism? (2021)
A.
Organic tomatoes
B.
Bt corn
C.
Heritage wheat
D.
Wild strawberries
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Solution
Bt corn is genetically modified to express a bacterial protein that provides resistance to certain pests.
Correct Answer:
B
— Bt corn
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Q. Which of the following is an example of a hybrid set?
A.
{1, 2, 3}
B.
{red, blue, green}
C.
{1, 'apple', 2.5}
D.
{true, false}
Show solution
Solution
A hybrid set can contain elements of different types, such as numbers, strings, and floats, as seen in {1, 'apple', 2.5}.
Correct Answer:
C
— {1, 'apple', 2.5}
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Q. Which of the following is an example of a keystone species? (2018)
A.
Elephants
B.
Rabbits
C.
Deer
D.
Sparrows
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Solution
Elephants are considered a keystone species because they play a critical role in maintaining the structure of their ecosystem.
Correct Answer:
A
— Elephants
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Q. Which of the following is an example of a Lewis acid?
A.
NH3
B.
H2O
C.
BF3
D.
CH4
Show solution
Solution
BF3 is a Lewis acid as it can accept a pair of electrons.
Correct Answer:
C
— BF3
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Q. Which of the following is an example of a longitudinal wave? (2023)
A.
Light wave
B.
Sound wave
C.
Water wave
D.
Seismic S-wave
Show solution
Solution
A sound wave is an example of a longitudinal wave, where the particle displacement is parallel to the direction of wave propagation.
Correct Answer:
B
— Sound wave
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Q. Which of the following is an example of a lyophilic colloid? (2021)
A.
Starch in water
B.
Smoke in air
C.
Milk
D.
Dust in air
Show solution
Solution
Starch in water is a lyophilic colloid as it has a strong affinity for the solvent.
Correct Answer:
A
— Starch in water
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Q. Which of the following is an example of a metallic solid? (2023)
A.
NaCl
B.
SiO2
C.
Fe
D.
C12H22O11
Show solution
Solution
Iron (Fe) is an example of a metallic solid, characterized by its metallic bonding and properties.
Correct Answer:
C
— Fe
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Q. Which of the following is an example of a metalloid? (2022)
A.
Bromine
B.
Silicon
C.
Sodium
D.
Calcium
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Solution
Silicon is classified as a metalloid, exhibiting properties of both metals and non-metals.
Correct Answer:
B
— Silicon
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Q. Which of the following is an example of a molecular solid? (2023)
A.
NaCl
B.
Diamond
C.
Iodine (I2)
D.
Iron (Fe)
Show solution
Solution
Iodine (I2) is an example of a molecular solid, where molecules are held together by van der Waals forces.
Correct Answer:
C
— Iodine (I2)
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Q. Which of the following is an example of a mutualistic relationship? (2023)
A.
Bees pollinating flowers
B.
Lions hunting zebras
C.
Moss growing on a tree
D.
Birds nesting in trees
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Solution
Bees pollinating flowers is a mutualistic relationship where both species benefit from the interaction.
Correct Answer:
A
— Bees pollinating flowers
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Q. Which of the following is an example of a natural sweetener? (2021)
A.
Aspartame
B.
Stevia
C.
Sucralose
D.
Saccharin
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Solution
Stevia is a natural sweetener derived from the leaves of the Stevia rebaudiana plant, making it a healthier alternative to synthetic sweeteners.
Correct Answer:
B
— Stevia
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Q. Which of the following is an example of a non-conservative force?
A.
Gravitational force
B.
Electrostatic force
C.
Frictional force
D.
Magnetic force
Show solution
Solution
Frictional force is an example of a non-conservative force as it dissipates energy as heat.
Correct Answer:
C
— Frictional force
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Q. Which of the following is an example of a non-contact force?
A.
Friction
B.
Tension
C.
Magnetic force
D.
Normal force
Show solution
Solution
Magnetic force is an example of a non-contact force, as it acts at a distance.
Correct Answer:
C
— Magnetic force
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Q. Which of the following is an example of a non-linear equation?
A.
y = 2x + 5
B.
y = x^2 - 4
C.
y = 3x - 1
D.
y = 7
Show solution
Solution
The equation y = x^2 - 4 is non-linear because it involves a variable raised to a power greater than one.
Correct Answer:
B
— y = x^2 - 4
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Q. Which of the following is an example of a non-Newtonian fluid?
A.
Water
B.
Air
C.
Cornstarch in water
D.
Glycerin
Show solution
Solution
Cornstarch in water (oobleck) is a non-Newtonian fluid that exhibits varying viscosity depending on the shear rate.
Correct Answer:
C
— Cornstarch in water
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Q. Which of the following is an example of a non-renewable energy source? (2017)
A.
Solar energy
B.
Wind energy
C.
Natural gas
D.
Hydropower
Show solution
Solution
Natural gas is a non-renewable energy source as it is derived from fossil fuels that cannot be replenished in a short time.
Correct Answer:
C
— Natural gas
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Q. Which of the following is an example of a non-stoichiometric solid? (2023)
A.
NaCl
B.
FeO
C.
MgO
D.
KCl
Show solution
Solution
FeO is an example of a non-stoichiometric solid because it can have varying ratios of iron and oxygen.
Correct Answer:
B
— FeO
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Q. Which of the following is an example of a peripheral device?
A.
CPU
B.
RAM
C.
Scanner
D.
Motherboard
Show solution
Solution
A scanner is an example of a peripheral device that is used to input images and documents into a computer.
Correct Answer:
C
— Scanner
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Q. Which of the following is an example of a physical adsorption?
A.
Adsorption of O2 on activated charcoal
B.
Adsorption of H2 on palladium
C.
Adsorption of NH3 on silica gel
D.
Adsorption of CO on metals
Show solution
Solution
The adsorption of O2 on activated charcoal is an example of physical adsorption.
Correct Answer:
A
— Adsorption of O2 on activated charcoal
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Q. Which of the following is an example of a physical change related to states of matter?
A.
Burning wood
B.
Dissolving sugar in water
C.
Rusting of iron
D.
Cooking an egg
Show solution
Solution
Dissolving sugar in water is a physical change as it does not alter the chemical composition.
Correct Answer:
B
— Dissolving sugar in water
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Q. Which of the following is an example of a physical change? (2019)
A.
Burning wood
B.
Dissolving sugar in water
C.
Rusting iron
D.
Cooking an egg
Show solution
Solution
Dissolving sugar in water is a physical change because it can be reversed by evaporation.
Correct Answer:
B
— Dissolving sugar in water
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Q. Which of the following is an example of a plasma? (2023)
A.
Ice
B.
Water
C.
Steam
D.
Lightning
Show solution
Solution
Lightning is an example of plasma, which is a state of matter consisting of ionized gas with free electrons.
Correct Answer:
D
— Lightning
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Q. Which of the following is an example of a preposition?
A.
under
B.
happy
C.
run
D.
quickly
Show solution
Solution
Under is a preposition that shows the relationship between nouns.
Correct Answer:
A
— under
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