Major Competitive Exams
Q. What is the primary factor that determines the color of coordination compounds?
A.
Nature of the metal ion
B.
Nature of the ligands
C.
Geometry of the complex
D.
All of the above
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Solution
The color of coordination compounds is influenced by the metal ion, ligands, and geometry, affecting d-d transitions.
Correct Answer: D — All of the above
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Q. What is the primary factor that determines the distribution of organisms in an ecosystem? (2020)
A.
Soil type
B.
Climate
C.
Topography
D.
Human activity
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Solution
Climate is the primary factor influencing the distribution of organisms, as it affects temperature, precipitation, and seasonal changes.
Correct Answer: B — Climate
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Q. What is the primary factor that determines the inductance of a coil? (2020)
A.
Length of the wire
B.
Number of turns
C.
Material of the core
D.
All of the above
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Solution
The inductance of a coil is determined by the length of the wire, the number of turns, and the material of the core.
Correct Answer: D — All of the above
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Q. What is the primary factor that determines the type of ecosystem in a particular area? (2022)
A.
Soil type
B.
Climate
C.
Topography
D.
Human activity
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Solution
Climate is the primary factor that determines the type of ecosystem in a particular area, influencing temperature and precipitation.
Correct Answer: B — Climate
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Q. What is the primary factor that determines the viscosity of a fluid?
A.
Temperature
B.
Pressure
C.
Density
D.
Molecular size
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Solution
Viscosity is primarily affected by temperature; as temperature increases, viscosity generally decreases.
Correct Answer: A — Temperature
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Q. What is the primary factor that influences the climate of a region? (2020)
A.
Altitude
B.
Latitude
C.
Vegetation
D.
Soil type
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Solution
Latitude is the primary factor influencing the climate of a region, as it determines the amount of solar energy received.
Correct Answer: B — Latitude
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Q. What is the primary focus of ex-situ conservation? (2022)
A.
Protecting species in their natural habitat
B.
Captive breeding of endangered species
C.
Restoring degraded ecosystems
D.
Creating wildlife corridors
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Solution
Ex-situ conservation focuses on the captive breeding of endangered species outside their natural habitats.
Correct Answer: B — Captive breeding of endangered species
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Q. What is the primary focus of semantic memory? (2021)
A.
Personal experiences
B.
General knowledge and facts
C.
Motor skills
D.
Visual images
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Solution
Semantic memory is responsible for storing general knowledge and facts about the world.
Correct Answer: B — General knowledge and facts
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Q. What is the primary focus of the 'National Education Policy 2020' in India? (2020)
A.
To increase the number of educational institutions.
B.
To promote vocational education and skill development.
C.
To enhance the quality of education and make it more holistic.
D.
To standardize education across all states.
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Solution
The National Education Policy 2020 aims to enhance the quality of education and promote a more holistic and multidisciplinary approach.
Correct Answer: C — To enhance the quality of education and make it more holistic.
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Q. What is the primary focus of the 'Skill India' initiative? (2015)
A.
To promote entrepreneurship
B.
To enhance skill development
C.
To provide job placements
D.
To improve education
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Solution
'Skill India' focuses on enhancing skill development among the youth to improve employability.
Correct Answer: B — To enhance skill development
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Q. What is the primary focus of the Beti Bachao Beti Padhao scheme? (2015)
A.
To promote women's entrepreneurship
B.
To improve the sex ratio and promote education for girls
C.
To provide financial assistance to women
D.
To enhance women's health services
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Solution
The Beti Bachao Beti Padhao scheme focuses on improving the sex ratio and promoting education for girls.
Correct Answer: B — To improve the sex ratio and promote education for girls
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Q. What is the primary focus of the Convention on Biological Diversity (CBD)? (2019)
A.
Climate change
B.
Sustainable development
C.
Pollution control
D.
Economic growth
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Solution
The primary focus of the Convention on Biological Diversity (CBD) is sustainable development and the conservation of biological diversity.
Correct Answer: B — Sustainable development
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Q. What is the primary focus of the Digital India initiative? (2015)
A.
Improving agricultural practices
B.
Enhancing digital infrastructure
C.
Promoting women's rights
D.
Providing free education
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Solution
Digital India aims to enhance digital infrastructure and promote digital literacy.
Correct Answer: B — Enhancing digital infrastructure
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Q. What is the primary focus of the passage discussing the benefits of meditation?
A.
Meditation is a religious practice.
B.
Meditation has no scientific backing.
C.
Meditation can improve mental health and well-being.
D.
Meditation is only beneficial for stress relief.
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Solution
The passage outlines various benefits of meditation, particularly its positive effects on mental health and overall well-being.
Correct Answer: C — Meditation can improve mental health and well-being.
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Q. What is the primary focus of the passage on renewable energy sources? (2023)
A.
The economic benefits of renewable energy.
B.
The technological advancements in renewable energy.
C.
The environmental necessity of transitioning to renewable energy.
D.
The historical development of renewable energy technologies.
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Solution
The passage emphasizes the urgent need for transitioning to renewable energy to address environmental issues.
Correct Answer: C — The environmental necessity of transitioning to renewable energy.
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Q. What is the primary focus of the passage regarding digital sum? (2023)
A.
The historical development of digital sum techniques.
B.
The application of digital sum in modern technology.
C.
The mathematical principles behind digital sum.
D.
The comparison between digital sum and traditional arithmetic.
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Solution
The passage emphasizes how digital sum is utilized in various modern technological applications, highlighting its relevance today.
Correct Answer: B — The application of digital sum in modern technology.
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Q. What is the primary focus of the passage regarding education reform?
A.
Education reform is unnecessary in the current system.
B.
Standardized testing is the best measure of student success.
C.
Education reform should prioritize critical thinking and creativity.
D.
Teachers should have less influence in curriculum development.
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Solution
The passage advocates for education reform that emphasizes critical thinking and creativity over rote memorization and standardized testing.
Correct Answer: C — Education reform should prioritize critical thinking and creativity.
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Q. What is the primary focus of the study of physics? (2021)
A.
The behavior of matter and energy
B.
The history of scientific discoveries
C.
The development of technology
D.
The study of living organisms
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Solution
Physics primarily focuses on understanding the behavior of matter and energy in the universe.
Correct Answer: A — The behavior of matter and energy
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Q. What is the primary focus of the text regarding the role of women in leadership? (2022)
A.
Women are less capable leaders than men.
B.
Women bring unique perspectives and strengths to leadership roles.
C.
Leadership roles should be reserved for men.
D.
Women in leadership are often less respected.
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Solution
The text highlights the unique strengths and perspectives that women contribute to leadership, advocating for greater representation in leadership roles.
Correct Answer: B — Women bring unique perspectives and strengths to leadership roles.
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Q. What is the primary force acting on a satellite in a stable orbit around the Earth?
A.
Gravitational force
B.
Electromagnetic force
C.
Frictional force
D.
Centrifugal force
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Solution
A satellite in a stable orbit is primarily influenced by the gravitational force exerted by the Earth.
Correct Answer: A — Gravitational force
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Q. What is the primary force holding the atoms together in covalent network solids? (2022)
A.
Ionic bonds
B.
Covalent bonds
C.
Metallic bonds
D.
Van der Waals forces
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Solution
Covalent network solids are held together by covalent bonds, forming a continuous network throughout the solid.
Correct Answer: B — Covalent bonds
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Q. What is the primary force that holds the nucleus of an atom together?
A.
Electromagnetic force
B.
Gravitational force
C.
Strong nuclear force
D.
Weak nuclear force
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Solution
The strong nuclear force is the primary force that holds protons and neutrons together in the nucleus.
Correct Answer: C — Strong nuclear force
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Q. What is the primary force that holds the nucleus together?
A.
Electromagnetic force
B.
Gravitational force
C.
Strong nuclear force
D.
Weak nuclear force
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Solution
The strong nuclear force is the primary force that holds the protons and neutrons together in the nucleus.
Correct Answer: C — Strong nuclear force
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Q. What is the primary force that holds the protons and neutrons together in the nucleus?
A.
Electromagnetic force
B.
Gravitational force
C.
Strong nuclear force
D.
Weak nuclear force
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Solution
The strong nuclear force is the primary force that holds protons and neutrons together in the nucleus, overcoming the electromagnetic repulsion between protons.
Correct Answer: C — Strong nuclear force
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Q. What is the primary function of a cathode in an electrochemical cell?
A.
To oxidize species
B.
To reduce species
C.
To provide electrons
D.
To balance charge
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Solution
The cathode is where reduction occurs, gaining electrons in the process.
Correct Answer: B — To reduce species
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Q. What is the primary function of a CPU in a computer system? (2021)
A.
To store data
B.
To process instructions
C.
To display graphics
D.
To connect peripherals
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Solution
The CPU (Central Processing Unit) is responsible for processing instructions and executing commands in a computer system.
Correct Answer: B — To process instructions
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Q. What is the primary function of a diode in a circuit?
A.
Amplification
B.
Rectification
C.
Capacitance
D.
Inductance
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Solution
The primary function of a diode is rectification, allowing current to flow in one direction only.
Correct Answer: B — Rectification
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Q. What is the primary function of a modulator in a communication system?
A.
To amplify the signal
B.
To convert the signal into a suitable form for transmission
C.
To demodulate the received signal
D.
To filter out noise
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Solution
A modulator converts the baseband signal into a form suitable for transmission over a communication channel.
Correct Answer: B — To convert the signal into a suitable form for transmission
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Q. What is the primary function of a salt bridge in a galvanic cell?
A.
To provide a path for electrons
B.
To maintain charge balance
C.
To increase voltage
D.
To decrease resistance
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Solution
The primary function of a salt bridge is to maintain charge balance by allowing ions to flow between the half-cells.
Correct Answer: B — To maintain charge balance
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Q. What is the primary function of a transistor in semiconductor technology?
A.
Switching
B.
Storage
C.
Transmission
D.
Resistance
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Solution
The primary function of a transistor is switching, allowing it to control electrical signals.
Correct Answer: A — Switching
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