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 statements is true about the inverse of a function?
A.
The inverse of a function is always a function.
B.
The inverse of a function is not necessarily a function.
C.
The inverse of a function is always linear.
D.
The inverse of a function cannot be graphed.
Show solution
Solution
The inverse of a function is a function only if the original function is one-to-one.
Correct Answer:
B
— The inverse of a function is not necessarily a function.
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Q. Which of the following statements is true about the kinetic molecular theory of gases?
A.
Gas particles have significant volume
B.
Gas particles attract each other
C.
Gas particles are in constant random motion
D.
Gas particles do not collide
Show solution
Solution
The kinetic molecular theory states that gas particles are in constant random motion.
Correct Answer:
C
— Gas particles are in constant random motion
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Q. Which of the following statements is true about the law of conservation of energy?
A.
Energy can be created
B.
Energy can be destroyed
C.
Energy can be transformed
D.
Energy is always lost
Show solution
Solution
The law of conservation of energy states that energy cannot be created or destroyed, but it can be transformed from one form to another.
Correct Answer:
C
— Energy can be transformed
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Q. Which of the following statements is true about the linear equation 4x - 5y = 20?
A.
It has no solutions.
B.
It has infinitely many solutions.
C.
It has exactly one solution.
D.
It is a quadratic equation.
Show solution
Solution
A linear equation in two variables has exactly one solution unless it is a special case (like parallel lines). Here, it is a standard linear equation.
Correct Answer:
C
— It has exactly one solution.
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Q. Which of the following statements is true about the magnetic field due to a current-carrying loop? (2020)
A.
It is uniform everywhere
B.
It is strongest at the center of the loop
C.
It is zero at the center of the loop
D.
It is strongest at the edges of the loop
Show solution
Solution
The magnetic field due to a current-carrying loop is strongest at the center of the loop and decreases as you move away from the center.
Correct Answer:
B
— It is strongest at the center of the loop
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Q. Which of the following statements is true about the magnetic field due to a long straight conductor? (2020)
A.
It is uniform and constant
B.
It decreases with distance from the conductor
C.
It increases with distance from the conductor
D.
It is only present at the ends of the conductor
Show solution
Solution
The magnetic field due to a long straight conductor decreases with increasing distance from the conductor.
Correct Answer:
B
— It decreases with distance from the conductor
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Q. Which of the following statements is true about the magnetic field inside a solenoid? (2019)
A.
It is zero
B.
It is uniform and parallel to the axis
C.
It varies with distance from the center
D.
It is stronger at the ends
Show solution
Solution
Inside a long solenoid, the magnetic field is uniform and parallel to the axis of the solenoid, provided the solenoid is long enough.
Correct Answer:
B
— It is uniform and parallel to the axis
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Q. Which of the following statements is true about the molecular orbital theory?
A.
It only applies to diatomic molecules
B.
It explains the magnetic properties of molecules
C.
It does not consider electron spin
D.
It is less accurate than valence bond theory
Show solution
Solution
Molecular orbital theory explains the magnetic properties of molecules, particularly the presence of unpaired electrons.
Correct Answer:
B
— It explains the magnetic properties of molecules
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Q. Which of the following statements is true about the nucleus of an atom? (2019)
A.
It contains only protons
B.
It contains only neutrons
C.
It contains protons and neutrons
D.
It contains electrons
Show solution
Solution
The nucleus of an atom contains protons and neutrons, which are collectively known as nucleons.
Correct Answer:
C
— It contains protons and neutrons
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Q. Which of the following statements is true about the photoelectric effect?
A.
It requires a minimum frequency of light
B.
It occurs with any frequency of light
C.
It is independent of light intensity
D.
It can occur in a vacuum only
Show solution
Solution
The photoelectric effect requires a minimum frequency of light known as the threshold frequency.
Correct Answer:
A
— It requires a minimum frequency of light
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Q. Which of the following statements is true about the roots of a polynomial function?
A.
A polynomial can have at most as many roots as its degree.
B.
All roots of a polynomial are real numbers.
C.
A polynomial of degree n has exactly n distinct roots.
D.
Roots of a polynomial cannot be complex.
Show solution
Solution
A polynomial function can have at most as many roots as its degree, but not all roots need to be real.
Correct Answer:
A
— A polynomial can have at most as many roots as its degree.
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Q. Which of the following statements is true about the second law of thermodynamics?
A.
Energy can be created
B.
Entropy of an isolated system always decreases
C.
Entropy of an isolated system always increases
D.
Energy can be destroyed
Show solution
Solution
The second law of thermodynamics states that the total entropy of an isolated system can never decrease over time.
Correct Answer:
C
— Entropy of an isolated system always increases
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Q. Which of the following statements is true about thermal equilibrium?
A.
Heat flows from cold to hot
B.
Heat flows from hot to cold
C.
No heat flow occurs
D.
Temperature is irrelevant
Show solution
Solution
In thermal equilibrium, no heat flows between systems, meaning they are at the same temperature.
Correct Answer:
C
— No heat flow occurs
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Q. Which of the following statements is true about variance? (2020)
A.
It can be negative
B.
It is always positive
C.
It is the average of the data
D.
It is the sum of the data
Show solution
Solution
Variance is always non-negative as it is calculated as the average of squared deviations from the mean.
Correct Answer:
B
— It is always positive
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Q. Which of the following statements is true according to molecular orbital theory?
A.
Bonding orbitals are higher in energy than antibonding orbitals.
B.
Bonding orbitals are lower in energy than antibonding orbitals.
C.
All molecular orbitals are degenerate.
D.
Molecular orbitals do not influence bond length.
Show solution
Solution
Bonding orbitals are lower in energy than antibonding orbitals, which is a fundamental principle of molecular orbital theory.
Correct Answer:
B
— Bonding orbitals are lower in energy than antibonding orbitals.
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Q. Which of the following statements is true according to Ohm's Law? (2019)
A.
Resistance is independent of temperature
B.
Voltage is inversely proportional to current
C.
Current is directly proportional to voltage
D.
Resistance increases with increasing current
Show solution
Solution
According to Ohm's Law, current (I) is directly proportional to voltage (V) when resistance (R) is constant.
Correct Answer:
C
— Current is directly proportional to voltage
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Q. Which of the following statements is true according to Raoult's Law?
A.
The vapor pressure of a solution is always higher than that of the pure solvent.
B.
The vapor pressure of a solution is lower than that of the pure solvent.
C.
Raoult's Law applies only to ideal solutions.
D.
The mole fraction of solute affects the vapor pressure of the solvent.
Show solution
Solution
Raoult's Law indicates that the vapor pressure of a solution is lower than that of the pure solvent due to the presence of solute.
Correct Answer:
B
— The vapor pressure of a solution is lower than that of the pure solvent.
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Q. Which of the following statements is true according to the first law of thermodynamics?
A.
Energy can be created or destroyed.
B.
Energy can only be transformed from one form to another.
C.
The total energy of an isolated system decreases.
D.
Heat and work are the same forms of energy.
Show solution
Solution
The first law of thermodynamics states that energy can only be transformed from one form to another, not created or destroyed.
Correct Answer:
B
— Energy can only be transformed from one form to another.
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Q. Which of the following statements is true according to the kinetic molecular theory?
A.
Gas particles have significant volume
B.
Gas particles are in constant motion
C.
Gas particles attract each other
D.
Gas particles do not collide
Show solution
Solution
According to the kinetic molecular theory, gas particles are in constant motion.
Correct Answer:
B
— Gas particles are in constant motion
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Q. Which of the following statements is true according to the kinetic theory of gases?
A.
Gas molecules occupy a fixed volume.
B.
Gas molecules have significant attractive forces between them.
C.
Gas molecules are in constant random motion.
D.
Gas molecules do not collide with each other.
Show solution
Solution
According to the kinetic theory, gas molecules are in constant random motion, which is a fundamental assumption of the theory.
Correct Answer:
C
— Gas molecules are in constant random motion.
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Q. Which of the following statements is true according to the second law of thermodynamics?
A.
Energy can be created
B.
Entropy of the universe decreases
C.
Heat cannot spontaneously flow from a colder body to a hotter body
D.
All processes are reversible
Show solution
Solution
The second law states that heat cannot spontaneously flow from a colder body to a hotter body, which implies that entropy of the universe tends to increase.
Correct Answer:
C
— Heat cannot spontaneously flow from a colder body to a hotter body
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Q. Which of the following statements is true based on the bar graph depicting the population growth of cities?
A.
City A grew faster than City B
B.
City B had a steady growth
C.
City C's growth was the highest
D.
City D's growth was negative
Show solution
Solution
The bar graph clearly shows that City A experienced faster growth than City B.
Correct Answer:
A
— City A grew faster than City B
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Q. Which of the following statements is true based on the bar graph depicting the population of various cities?
A.
City A has a larger population than City B.
B.
City C has the smallest population.
C.
City D's population is equal to City A.
D.
City B is the most populous.
Show solution
Solution
The bar graph clearly shows that City A has a larger population than City B.
Correct Answer:
A
— City A has a larger population than City B.
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Q. Which of the following statements is true based on the bar graph depicting the population growth of various cities?
A.
City A grew faster than City B
B.
City C had the slowest growth
C.
City D's growth was consistent
D.
City E's growth was erratic
Show solution
Solution
The bar graph shows that City A's growth rate was higher than that of City B.
Correct Answer:
A
— City A grew faster than City B
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Q. Which of the following statements is true based on the bar graph of customer satisfaction ratings?
A.
All categories received equal ratings
B.
Category A received the highest rating
C.
Category B received the lowest rating
D.
Category C had no ratings
Show solution
Solution
The bar graph indicates that Category A received the highest customer satisfaction rating.
Correct Answer:
B
— Category A received the highest rating
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Q. Which of the following statements is true based on the bar graph of monthly expenses?
A.
Rent is the highest expense
B.
Utilities are the lowest expense
C.
Groceries exceed transportation costs
D.
Entertainment is equal to rent
Show solution
Solution
The bar graph clearly shows that Rent is the highest expense among the categories.
Correct Answer:
A
— Rent is the highest expense
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Q. Which of the following statements is true based on the bar graph of student enrollment in various courses?
A.
More students enrolled in Arts than Science
B.
Science had the highest enrollment
C.
Engineering had the least enrollment
D.
All courses had equal enrollment
Show solution
Solution
The bar graph indicates that more students enrolled in Arts than in Science.
Correct Answer:
B
— Science had the highest enrollment
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Q. Which of the following statements is true based on the bar graph? (2021)
A.
Bananas sold more than Grapes in 2021
B.
Cherries had the highest sales in 2022
C.
Mangoes showed a steady increase every year
D.
Pineapples had the lowest sales in 2021
Show solution
Solution
The graph indicates that Bananas sold more than Grapes in 2021.
Correct Answer:
A
— Bananas sold more than Grapes in 2021
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Q. Which of the following statements is true based on the data in the table?
A.
Product D had the lowest sales in Q1
B.
Product A consistently outperformed Product B
C.
Product C had a spike in sales in Q3
D.
Product B's sales were the same in Q1 and Q3
Show solution
Solution
Product D had the lowest sales in Q1, as indicated in the table.
Correct Answer:
A
— Product D had the lowest sales in Q1
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Q. Which of the following statements is true based on the line graph comparing the annual revenue of two companies?
A.
Company X consistently outperformed Company Y
B.
Company Y had a higher revenue in Q2
C.
Both companies had equal revenue in Q4
D.
Company X's revenue was volatile
Show solution
Solution
The graph shows that Company Y had a higher revenue in Q2 compared to Company X.
Correct Answer:
B
— Company Y had a higher revenue in Q2
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