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. What is the main product when propanal is treated with excess hydrogen in the presence of a catalyst?
A.
Propan-1-ol
B.
Propan-2-ol
C.
Propanoic acid
D.
Propane
Show solution
Solution
Propanal is reduced to propan-1-ol when treated with excess hydrogen in the presence of a catalyst.
Correct Answer:
A
— Propan-1-ol
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Q. What is the main product when propanal is treated with sodium bisulfite? (2019)
A.
Sodium propanoate
B.
Propyl sulfonate
C.
Propane-1,2-diol
D.
A bisulfite adduct
Show solution
Solution
Propanal reacts with sodium bisulfite to form a bisulfite adduct, which is a characteristic reaction of aldehydes.
Correct Answer:
D
— A bisulfite adduct
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Q. What is the main product when propanoic acid is treated with thionyl chloride?
A.
Propyl chloride
B.
Propanoic anhydride
C.
Propionyl chloride
D.
Propylene
Show solution
Solution
The reaction of propanoic acid with thionyl chloride produces propionyl chloride.
Correct Answer:
C
— Propionyl chloride
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Q. What is the main product when propene is reacted with hydrogen in the presence of a catalyst?
A.
Propane
B.
Butane
C.
Ethane
D.
Cyclopropane
Show solution
Solution
The main product of the hydrogenation of propene is propane.
Correct Answer:
A
— Propane
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Q. What is the main product when propene undergoes hydroboration-oxidation?
A.
Propan-1-ol
B.
Propan-2-ol
C.
Propanoic acid
D.
Butanol
Show solution
Solution
The main product of hydroboration-oxidation of propene is propan-2-ol.
Correct Answer:
B
— Propan-2-ol
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Q. What is the main product when toluene is nitrated?
A.
Nitrotoluene
B.
Dinitrotoluene
C.
Benzaldehyde
D.
Benzyl alcohol
Show solution
Solution
Nitration of toluene primarily yields nitrotoluene, with the nitro group being directed to the ortho and para positions.
Correct Answer:
A
— Nitrotoluene
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Q. What is the main purpose of a choke in an AC circuit? (2022)
A.
To increase current
B.
To decrease current
C.
To store energy
D.
To convert AC to DC
Show solution
Solution
A choke is used to decrease current in an AC circuit by providing inductive reactance.
Correct Answer:
B
— To decrease current
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Q. What is the main purpose of a firewall?
A.
To speed up internet connection
B.
To protect against unauthorized access
C.
To store data
D.
To manage network traffic
Show solution
Solution
A firewall is used to protect a network from unauthorized access and threats.
Correct Answer:
B
— To protect against unauthorized access
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Q. What is the main purpose of a motherboard?
A.
Store data
B.
Connect all components
C.
Power the computer
D.
Input data
Show solution
Solution
The motherboard connects all components of a computer, allowing them to communicate with each other.
Correct Answer:
B
— Connect all components
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Q. What is the main purpose of a Punnett square? (2020)
A.
To determine the phenotype
B.
To predict genetic variation
C.
To identify alleles
D.
To analyze pedigrees
Show solution
Solution
A Punnett square is used to predict the genetic variation and possible genotypes of offspring from a genetic cross.
Correct Answer:
B
— To predict genetic variation
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Q. What is the main purpose of amniotic fluid? (2022)
A.
Protection of the fetus
B.
Nourishment of the fetus
C.
Gas exchange
D.
Hormonal regulation
Show solution
Solution
Amniotic fluid serves to protect the fetus by cushioning it from physical shocks and providing a stable environment.
Correct Answer:
A
— Protection of the fetus
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Q. What is the main purpose of an operating system's kernel? (2023)
A.
To provide a user interface
B.
To manage system resources
C.
To run applications
D.
To connect to the internet
Show solution
Solution
The kernel is the core component of an operating system that manages system resources and communication between hardware and software.
Correct Answer:
B
— To manage system resources
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Q. What is the main purpose of an operating system?
A.
To manage hardware and software resources
B.
To provide internet access
C.
To run applications
D.
To store files
Show solution
Solution
The main purpose of an operating system is to manage hardware and software resources on a computer.
Correct Answer:
A
— To manage hardware and software resources
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Q. What is the main purpose of classification in biology? (2019)
A.
To identify organisms
B.
To understand evolutionary relationships
C.
To simplify the study of organisms
D.
All of the above
Show solution
Solution
The main purpose of classification in biology is to identify organisms, understand evolutionary relationships, and simplify the study of organisms.
Correct Answer:
D
— All of the above
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Q. What is the main purpose of emulsifiers in food products?
A.
Thicken
B.
Stabilize mixtures
C.
Add flavor
D.
Preserve freshness
Show solution
Solution
Emulsifiers stabilize mixtures of oil and water, preventing separation in food products.
Correct Answer:
B
— Stabilize mixtures
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Q. What is the main purpose of family planning? (2021)
A.
To increase population growth
B.
To allow couples to decide the number and spacing of children
C.
To promote early childbirth
D.
To discourage contraceptive use
Show solution
Solution
Family planning enables couples to make informed decisions about the number and spacing of their children.
Correct Answer:
B
— To allow couples to decide the number and spacing of children
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Q. What is the main purpose of reading comprehension strategies?
A.
To memorize information
B.
To improve reading speed
C.
To enhance understanding of the text
D.
To increase vocabulary
Show solution
Solution
Reading comprehension strategies are designed to enhance understanding of the text by helping readers to process and interpret information effectively.
Correct Answer:
C
— To enhance understanding of the text
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Q. What is the main purpose of reproduction in organisms? (2020)
A.
To maintain homeostasis
B.
To produce energy
C.
To ensure species survival
D.
To grow and develop
Show solution
Solution
The main purpose of reproduction is to ensure the survival of a species by producing new individuals.
Correct Answer:
C
— To ensure species survival
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Q. What is the main purpose of respiration in plants? (2023)
A.
To produce glucose
B.
To release energy
C.
To absorb water
D.
To synthesize proteins
Show solution
Solution
The main purpose of respiration in plants is to release energy from glucose, which is essential for various cellular processes.
Correct Answer:
B
— To release energy
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Q. What is the main purpose of sexual reproduction? (2020)
A.
To produce more offspring
B.
To create genetic diversity
C.
To ensure survival of the species
D.
To reduce competition
Show solution
Solution
The main purpose of sexual reproduction is to create genetic diversity, which can improve adaptability.
Correct Answer:
B
— To create genetic diversity
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Q. What is the main purpose of taxation? (2020)
A.
To control inflation
B.
To fund government spending
C.
To reduce unemployment
D.
To promote exports
Show solution
Solution
The main purpose of taxation is to fund government spending on public services and infrastructure.
Correct Answer:
B
— To fund government spending
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Q. What is the main purpose of the acrosome in sperm? (2022)
A.
To provide energy
B.
To penetrate the egg
C.
To store genetic material
D.
To aid in motility
Show solution
Solution
The acrosome contains enzymes that help the sperm penetrate the outer layers of the egg during fertilization.
Correct Answer:
B
— To penetrate the egg
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Q. What is the main purpose of the amniotic fluid? (2023)
A.
Protection of the fetus
B.
Nourishment of the fetus
C.
Gas exchange
D.
Hormonal regulation
Show solution
Solution
The main purpose of the amniotic fluid is to protect the fetus by cushioning it from physical shocks.
Correct Answer:
A
— Protection of the fetus
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Q. What is the main purpose of the author's use of statistics in the passage? (2023)
A.
To confuse the reader
B.
To support an argument
C.
To entertain
D.
To provide background information
Show solution
Solution
The statistics are used to substantiate the author's argument about the urgency of addressing climate issues.
Correct Answer:
B
— To support an argument
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Q. What is the main purpose of the G1 phase in the cell cycle? (2022)
A.
DNA replication
B.
Cell growth and preparation for DNA synthesis
C.
Chromosome separation
D.
Cell division
Show solution
Solution
The G1 phase is primarily for cell growth and preparation for DNA synthesis.
Correct Answer:
B
— Cell growth and preparation for DNA synthesis
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Q. What is the main purpose of the menstrual cycle? (2023)
A.
To prepare the body for pregnancy
B.
To produce sperm
C.
To regulate hormone levels
D.
To eliminate waste
Show solution
Solution
The main purpose of the menstrual cycle is to prepare the female body for potential pregnancy each month.
Correct Answer:
A
— To prepare the body for pregnancy
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Q. What is the main purpose of the passage discussing the effects of urbanization?
A.
To highlight the benefits of urban living.
B.
To argue against urban development.
C.
To discuss the challenges posed by urbanization.
D.
To promote rural living as a better alternative.
Show solution
Solution
The passage primarily addresses the various challenges that urbanization brings, such as overcrowding and pollution.
Correct Answer:
C
— To discuss the challenges posed by urbanization.
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Q. What is the main purpose of the passage?
A.
To argue against climate change.
B.
To inform readers about the effects of climate change.
C.
To persuade readers to take action against climate change.
D.
To discuss the history of climate science.
Show solution
Solution
The primary purpose of the passage is to persuade readers to take action against climate change by highlighting its urgency and impact.
Correct Answer:
C
— To persuade readers to take action against climate change.
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Q. What is the main purpose of the S phase in the cell cycle? (2022)
A.
Cell growth
B.
DNA replication
C.
Cell division
D.
Protein synthesis
Show solution
Solution
The S phase is specifically for DNA replication, ensuring that each daughter cell receives a complete set of chromosomes.
Correct Answer:
B
— DNA replication
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Q. What is the main purpose of the xylem in plants? (2020)
A.
Transport of food
B.
Transport of water
C.
Photosynthesis
D.
Storage of nutrients
Show solution
Solution
Xylem is responsible for the transport of water and dissolved minerals from the roots to the rest of the plant.
Correct Answer:
B
— Transport of water
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