Q. In the given table, how many units of Product B were sold in total?
A.
150
B.
200
C.
250
D.
300
Show solution
Solution
Product B sold 100 units in Q1 and 150 units in Q2, totaling 250 units.
Correct Answer:
C
— 250
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Q. In the hydrogen atom, which transition would emit the photon with the highest energy? (2019)
A.
n=2 to n=1
B.
n=3 to n=2
C.
n=4 to n=3
D.
n=5 to n=4
Show solution
Solution
The energy of the emitted photon is highest for the transition from n=2 to n=1, as it involves the largest energy difference.
Correct Answer:
A
— n=2 to n=1
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Q. In the ideal gas equation PV=nRT, what does 'n' represent?
A.
Pressure
B.
Volume
C.
Number of moles
D.
Temperature
Show solution
Solution
'n' represents the number of moles of the gas in the ideal gas equation.
Correct Answer:
C
— Number of moles
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Q. In the kinetic theory of gases, the pressure exerted by a gas is due to:
A.
Gravitational force
B.
Molecular collisions with the walls
C.
Temperature of the gas
D.
Volume of the gas
Show solution
Solution
The pressure exerted by a gas is due to the collisions of gas molecules with the walls of the container.
Correct Answer:
B
— Molecular collisions with the walls
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Q. In the kinetic theory of gases, the temperature of a gas is a measure of: (2022)
A.
The average potential energy of the molecules
B.
The average kinetic energy of the molecules
C.
The total energy of the gas
D.
The number of molecules in the gas
Show solution
Solution
In the kinetic theory of gases, the temperature of a gas is a measure of the average kinetic energy of the molecules.
Correct Answer:
B
— The average kinetic energy of the molecules
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Q. In the kinetic theory of gases, the term 'elastic collision' means: (2019)
A.
Kinetic energy is conserved
B.
Momentum is conserved
C.
Both kinetic energy and momentum are conserved
D.
Neither kinetic energy nor momentum is conserved
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Solution
In elastic collisions, both kinetic energy and momentum are conserved, which is a key assumption in the kinetic theory of gases.
Correct Answer:
C
— Both kinetic energy and momentum are conserved
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Q. In the kinetic theory of gases, the term 'ideal gas' refers to:
A.
A gas that obeys the ideal gas law at all conditions
B.
A gas with no intermolecular forces
C.
A gas that has a constant volume
D.
A gas that can be liquefied easily
Show solution
Solution
An ideal gas is a theoretical gas that perfectly follows the ideal gas law and has no intermolecular forces, behaving ideally under all conditions.
Correct Answer:
B
— A gas with no intermolecular forces
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Q. In the kinetic theory of gases, the term 'mean free path' refers to:
A.
The average distance traveled by a molecule between collisions
B.
The average speed of gas molecules
C.
The average time between collisions
D.
The average distance of the gas from the walls of the container
Show solution
Solution
The mean free path is defined as the average distance a molecule travels before colliding with another molecule.
Correct Answer:
A
— The average distance traveled by a molecule between collisions
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Q. In the kinetic theory of gases, what does the term 'ideal gas' refer to?
A.
A gas that obeys the ideal gas law at all conditions.
B.
A gas with no intermolecular forces.
C.
A gas that has a fixed volume.
D.
A gas that can be liquefied easily.
Show solution
Solution
An ideal gas is defined as a gas that has no intermolecular forces and occupies no volume, allowing it to perfectly obey the ideal gas law under all conditions.
Correct Answer:
B
— A gas with no intermolecular forces.
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Q. In the kinetic theory of gases, which of the following quantities is directly proportional to the square of the speed of gas molecules?
A.
Pressure
B.
Volume
C.
Temperature
D.
Density
Show solution
Solution
According to the kinetic theory, pressure is directly proportional to the average kinetic energy of the gas molecules, which is proportional to the square of their speed.
Correct Answer:
A
— Pressure
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Q. In the kinetic theory, the internal energy of an ideal gas is primarily due to:
A.
Potential energy
B.
Kinetic energy of molecules
C.
Work done on the gas
D.
Heat energy
Show solution
Solution
In an ideal gas, the internal energy is primarily due to the kinetic energy of the gas molecules, as potential energy is negligible.
Correct Answer:
B
— Kinetic energy of molecules
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Q. In the kinetic theory, the temperature of a gas is a measure of: (2022)
A.
The average potential energy of the molecules
B.
The average kinetic energy of the molecules
C.
The total energy of the gas
D.
The speed of the gas molecules
Show solution
Solution
In the kinetic theory, the temperature of a gas is a measure of the average kinetic energy of the molecules.
Correct Answer:
B
— The average kinetic energy of the molecules
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Q. In the Langmuir adsorption isotherm, what assumption is made about the adsorption sites?
A.
They are identical and have the same energy
B.
They are different and have varying energy
C.
They can accommodate multiple layers
D.
They are not limited in number
Show solution
Solution
The Langmuir isotherm assumes that all adsorption sites are identical and have the same energy.
Correct Answer:
A
— They are identical and have the same energy
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Q. In the Langmuir adsorption isotherm, what does the term 'b' represent?
A.
Adsorption energy
B.
Surface area
C.
Equilibrium constant
D.
Adsorption capacity
Show solution
Solution
'b' in the Langmuir isotherm represents the equilibrium constant related to the adsorption process.
Correct Answer:
C
— Equilibrium constant
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Q. In the Langmuir adsorption isotherm, which assumption is NOT made? (2019)
A.
Adsorption occurs on a surface with a finite number of identical sites
B.
Adsorption is reversible
C.
There is no interaction between adsorbed molecules
D.
Adsorption occurs only at high pressures
Show solution
Solution
The Langmuir isotherm assumes that adsorption occurs at all pressures, not just high pressures.
Correct Answer:
D
— Adsorption occurs only at high pressures
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Q. In the line chart, what was the sales figure at the end of 2021?
A.
3000
B.
3500
C.
4000
D.
4500
Show solution
Solution
The sales figure at the end of 2021 was 4000 according to the line chart.
Correct Answer:
C
— 4000
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Q. In the line chart, what was the sales figure for 2018?
A.
100
B.
200
C.
300
D.
400
Show solution
Solution
The sales figure for 2018 was 100 as indicated in the line chart.
Correct Answer:
A
— 100
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Q. In the line chart, what was the sales figure for 2021?
A.
300
B.
350
C.
400
D.
450
Show solution
Solution
The sales figure for 2021 was 450 as indicated in the line chart.
Correct Answer:
D
— 450
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Q. In the line graph depicting the population growth of a city, what does a steep incline represent?
A.
Stable population
B.
Rapid population increase
C.
Population decline
D.
Population stagnation
Show solution
Solution
A steep incline in the graph indicates a rapid increase in the city's population.
Correct Answer:
B
— Rapid population increase
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Q. In the line graph illustrating the number of visitors to a park, which month had the most significant drop in attendance?
A.
March
B.
June
C.
September
D.
December
Show solution
Solution
September showed a sharp decline in visitor numbers, making it the month with the most significant drop.
Correct Answer:
C
— September
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Q. In the line graph illustrating the population growth of a city, what does a plateau in the line indicate?
A.
Rapid growth
B.
Stagnation
C.
Decline
D.
Unpredictable changes
Show solution
Solution
A plateau indicates that the population growth has stagnated during that period.
Correct Answer:
B
— Stagnation
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Q. In the line graph illustrating the population growth of a city, which year saw the most significant increase? (2020)
A.
2018
B.
2019
C.
2020
D.
2021
Show solution
Solution
The year 2020 showed the most significant increase in population growth according to the graph.
Correct Answer:
C
— 2020
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Q. In the line graph, if Product A's sales peaked in March and then declined steadily, what could be a possible reason for this trend?
A.
Launch of a new product
B.
Seasonal sales
C.
Price increase
D.
All of the above
Show solution
Solution
Any of these factors could contribute to the peak and subsequent decline in sales.
Correct Answer:
D
— All of the above
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Q. In the line graph, if Product A's sales peaked in March and then declined, what could be a possible reason for this trend?
A.
Increased competition
B.
Seasonal demand
C.
Marketing campaign
D.
Price reduction
Show solution
Solution
The peak in March followed by a decline could indicate increased competition affecting sales.
Correct Answer:
B
— Seasonal demand
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Q. In the line graph, if the sales of Product A and Product B intersect at a certain point, what does this signify?
A.
Product A is more popular
B.
Sales of both products are equal
C.
Product B is declining
D.
Product A is being phased out
Show solution
Solution
The intersection indicates that the sales of Product A and Product B are equal at that point in time.
Correct Answer:
B
— Sales of both products are equal
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Q. In the line graph, if the sales of Product A and Product B intersect at a point, what does this indicate?
A.
Product A is more popular
B.
Sales of both products are equal
C.
Product B is declining
D.
Product A is being phased out
Show solution
Solution
The intersection point indicates that the sales of both products are equal at that time.
Correct Answer:
B
— Sales of both products are equal
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Q. In the line graph, if the sales of Product A peaked in March and then declined, what could be a possible reason for this trend?
A.
Seasonal demand
B.
Increased competition
C.
Price hike
D.
All of the above
Show solution
Solution
All listed factors could contribute to the peak and subsequent decline in sales.
Correct Answer:
D
— All of the above
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Q. In the line graph, what was the growth rate from Year 1 to Year 3?
A.
10%
B.
20%
C.
30%
D.
40%
Show solution
Solution
The growth from Year 1 (100) to Year 3 (140) is 40%.
Correct Answer:
D
— 40%
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Q. In the line graph, what was the sales trend from January to March?
A.
Increasing
B.
Decreasing
C.
Stable
D.
Fluctuating
Show solution
Solution
Sales increased steadily from January to March.
Correct Answer:
A
— Increasing
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Q. In the measurement 0.007890, how many significant figures are present?
Show solution
Solution
The significant figures are 7, 8, 9, and 0, totaling 4 significant figures.
Correct Answer:
C
— 5
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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!
