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 carboxylic acid is known for its use in the production of biodiesel? (2023)
A.
Palmitic acid
B.
Stearic acid
C.
Oleic acid
D.
Linoleic acid
Show solution
Solution
Oleic acid is commonly used in the production of biodiesel due to its favorable properties.
Correct Answer:
C
— Oleic acid
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Q. Which carboxylic acid is known for its use in the production of nylon? (2019)
A.
Adipic acid
B.
Citric acid
C.
Lactic acid
D.
Acetic acid
Show solution
Solution
Adipic acid is used in the production of nylon, particularly nylon 6,6.
Correct Answer:
A
— Adipic acid
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Q. Which carboxylic acid is responsible for the sour taste in citrus fruits? (2020)
A.
Citric acid
B.
Acetic acid
C.
Lactic acid
D.
Formic acid
Show solution
Solution
Citric acid is responsible for the sour taste in citrus fruits.
Correct Answer:
A
— Citric acid
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Q. Which carboxylic acid is responsible for the sour taste in sour milk? (2020)
A.
Lactic acid
B.
Acetic acid
C.
Citric acid
D.
Formic acid
Show solution
Solution
Lactic acid is produced during the fermentation of lactose in sour milk, giving it a sour taste.
Correct Answer:
A
— Lactic acid
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Q. Which carboxylic acid is used in the production of nylon? (2023)
A.
Hexanoic acid
B.
Adipic acid
C.
Citric acid
D.
Acetic acid
Show solution
Solution
Adipic acid is used in the production of nylon, specifically nylon-6,6.
Correct Answer:
B
— Adipic acid
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Q. Which category had the least expenditure according to the bar graph?
A.
Research
B.
Marketing
C.
Operations
D.
HR
Show solution
Solution
HR had the least expenditure at 100, compared to others.
Correct Answer:
D
— HR
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Q. Which category had the least expenditure in the caselet?
A.
Marketing
B.
Research
C.
Development
D.
Operations
Show solution
Solution
The caselet indicates that Marketing had the least expenditure.
Correct Answer:
A
— Marketing
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Q. Which category had the least expenditure in the pie chart?
A.
Marketing
B.
Research
C.
Development
D.
Sales
Show solution
Solution
The pie chart indicates that Marketing had the least expenditure.
Correct Answer:
A
— Marketing
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Q. Which category had the most significant sales drop according to the bar graph?
A.
Electronics
B.
Clothing
C.
Groceries
D.
Furniture
Show solution
Solution
The bar graph indicates that clothing had the most significant sales drop compared to other categories.
Correct Answer:
B
— Clothing
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Q. Which category in the bar graph had sales that were consistently higher than the others throughout the year?
A.
Clothing
B.
Footwear
C.
Accessories
D.
Jewelry
Show solution
Solution
Clothing consistently had higher sales than the other categories throughout the year.
Correct Answer:
A
— Clothing
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Q. Which category in the bar graph had sales that were double that of the lowest category?
A.
Toys
B.
Clothing
C.
Electronics
D.
Furniture
Show solution
Solution
The bar graph shows that Toys had sales that were double that of the lowest category, Furniture.
Correct Answer:
A
— Toys
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Q. Which checkpoint in the cell cycle ensures that DNA is not damaged before replication? (2023)
A.
G1 checkpoint
B.
G2 checkpoint
C.
M checkpoint
D.
S checkpoint
Show solution
Solution
The G1 checkpoint assesses the cell's size and DNA integrity before it enters the S phase for replication.
Correct Answer:
A
— G1 checkpoint
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Q. Which chemical compound is primarily responsible for ozone depletion?
A.
CFCs
B.
CO2
C.
SO2
D.
NOx
Show solution
Solution
Chlorofluorocarbons (CFCs) are primarily responsible for ozone depletion in the stratosphere.
Correct Answer:
A
— CFCs
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Q. Which chemical is commonly found in household bleach?
A.
Hydrogen peroxide
B.
Sodium hypochlorite
C.
Ammonium hydroxide
D.
Calcium hypochlorite
Show solution
Solution
Sodium hypochlorite is the active ingredient in most household bleach products.
Correct Answer:
B
— Sodium hypochlorite
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Q. Which chemical is commonly used as a food preservative?
A.
Sodium chloride
B.
Sodium benzoate
C.
Vinegar
D.
Sugar
Show solution
Solution
Sodium benzoate is a widely used food preservative that inhibits the growth of bacteria and fungi.
Correct Answer:
B
— Sodium benzoate
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Q. Which chemical is commonly used to treat drinking water?
A.
Chlorine
B.
Fluoride
C.
Sodium bicarbonate
D.
Sulfuric acid
Show solution
Solution
Chlorine is commonly used to disinfect drinking water and kill harmful bacteria.
Correct Answer:
A
— Chlorine
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Q. Which chemical is primarily responsible for ozone depletion?
A.
Carbon Dioxide
B.
Chlorofluorocarbons (CFCs)
C.
Methane
D.
Sulfur Dioxide
Show solution
Solution
Chlorofluorocarbons (CFCs) are primarily responsible for ozone depletion in the stratosphere.
Correct Answer:
B
— Chlorofluorocarbons (CFCs)
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Q. Which chemical is primarily responsible for the depletion of the ozone layer?
A.
Carbon Dioxide
B.
Chlorofluorocarbons (CFCs)
C.
Methane
D.
Sulfur Dioxide
Show solution
Solution
Chlorofluorocarbons (CFCs) are responsible for the depletion of the ozone layer, as they release chlorine atoms that destroy ozone molecules.
Correct Answer:
B
— Chlorofluorocarbons (CFCs)
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Q. Which civilization is known for creating the first known writing system?
A.
Ancient Egypt
B.
Sumerians
C.
Indus Valley
D.
Minoans
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Solution
The Sumerians are credited with creating the first known writing system, cuneiform, around 3200 BC.
Correct Answer:
B
— Sumerians
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Q. Which class of animals is characterized by having scales and laying eggs on land? (2022)
A.
Amphibia
B.
Reptilia
C.
Aves
D.
Mammalia
Show solution
Solution
Reptiles are characterized by having scales and typically lay eggs on land.
Correct Answer:
B
— Reptilia
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Q. Which class of animals is characterized by the presence of scales? (2023)
A.
Amphibia
B.
Reptilia
C.
Aves
D.
Mammalia
Show solution
Solution
Reptiles are characterized by the presence of scales, which help in protection and water retention.
Correct Answer:
B
— Reptilia
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Q. Which class of animals is known for having a three-chambered heart? (2023)
A.
Mammals
B.
Birds
C.
Reptiles
D.
Amphibians
Show solution
Solution
Reptiles typically have a three-chambered heart, except for crocodilians which have a four-chambered heart.
Correct Answer:
C
— Reptiles
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Q. Which class of animals is known for having scales and laying eggs on land? (2022)
A.
Amphibia
B.
Reptilia
C.
Aves
D.
Mammalia
Show solution
Solution
Reptiles (Reptilia) are known for having scales and typically lay eggs on land, adapting to terrestrial life.
Correct Answer:
B
— Reptilia
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Q. Which class of the phylum Chordata includes animals that are warm-blooded? (2023)
A.
Reptilia
B.
Amphibia
C.
Aves
D.
Osteichthyes
Show solution
Solution
Class Aves (birds) are warm-blooded, maintaining a constant body temperature.
Correct Answer:
C
— Aves
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Q. Which class of the phylum Chordata is characterized by the presence of feathers? (2023)
A.
Mammalia
B.
Reptilia
C.
Aves
D.
Amphibia
Show solution
Solution
Class Aves is characterized by the presence of feathers, which are unique to birds.
Correct Answer:
C
— Aves
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Q. Which climate zone is characterized by very low precipitation and extreme temperature variations? (2022)
A.
Tropical
B.
Desert
C.
Temperate
D.
Polar
Show solution
Solution
The desert climate zone is characterized by very low precipitation and extreme temperature variations.
Correct Answer:
B
— Desert
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Q. Which climate zone is characterized by very low rainfall and extreme temperatures?
A.
Tropical
B.
Temperate
C.
Desert
D.
Polar
Show solution
Solution
The Desert climate zone is characterized by very low rainfall and extreme temperatures.
Correct Answer:
C
— Desert
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Q. Which climate zone is characterized by warm summers and cold winters?
A.
Tropical
B.
Mediterranean
C.
Continental
D.
Polar
Show solution
Solution
The continental climate zone is characterized by warm summers and cold winters, typically found in the interior of continents.
Correct Answer:
C
— Continental
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Q. Which climate zone is characterized by warm temperatures and high humidity year-round?
A.
Tropical
B.
Arid
C.
Temperate
D.
Continental
Show solution
Solution
The tropical climate zone is known for its warm temperatures and high humidity throughout the year.
Correct Answer:
A
— Tropical
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Q. Which climate zone is characterized by warm temperatures and high rainfall throughout the year?
A.
Tropical
B.
Arid
C.
Temperate
D.
Polar
Show solution
Solution
The tropical climate zone is characterized by warm temperatures and high levels of rainfall year-round.
Correct Answer:
A
— Tropical
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