Q. Which of the following is an example of convection?
-
A.
Heating a metal rod in a flame
-
B.
Boiling water in a pot
-
C.
Sunlight warming the ground
-
D.
Ice melting in a drink
Solution
Boiling water in a pot is a classic example of convection, where hot water rises and cooler water descends.
Correct Answer:
B
— Boiling water in a pot
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Q. Which of the following is an example of convergent evolution? (1980)
-
A.
Darwin's finches
-
B.
Whales and fish
-
C.
Horses and zebras
-
D.
Dogs and wolves
Solution
Convergent evolution occurs when unrelated species evolve similar traits, as seen in whales and fish, which both have streamlined bodies for swimming.
Correct Answer:
B
— Whales and fish
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Q. Which of the following is an example of divergent evolution?
-
A.
Wings of bats and birds
-
B.
Body shape of dolphins and sharks
-
C.
Darwin's finches
-
D.
Cacti and succulents
Solution
Darwin's finches are an example of divergent evolution, where different species evolved from a common ancestor and adapted to different environments.
Correct Answer:
C
— Darwin's finches
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Q. Which of the following is an example of ex-situ conservation? (2023)
-
A.
National parks
-
B.
Wildlife reserves
-
C.
Aquariums
-
D.
Biosphere reserves
Solution
Aquariums are an example of ex-situ conservation as they involve the conservation of species outside their natural habitats.
Correct Answer:
C
— Aquariums
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Q. Which of the following is an example of figural memory? (2020)
-
A.
Remembering a friend's birthday
-
B.
Recalling the capital of a country
-
C.
Recognizing a face in a crowd
-
D.
Knowing the rules of a game
Solution
Figural memory involves the ability to recognize and recall visual images, such as faces.
Correct Answer:
C
— Recognizing a face in a crowd
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Q. Which of the following is an example of forced convection?
-
A.
Heat transfer in a pot of boiling water
-
B.
Heat transfer from a radiator
-
C.
Heat transfer from a hot cup of coffee
-
D.
Heat transfer in a still air room
Solution
Heat transfer in a pot of boiling water is an example of forced convection.
Correct Answer:
B
— Heat transfer from a radiator
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Q. Which of the following is an example of fragmentation? (2023)
-
A.
Starfish
-
B.
Bacteria
-
C.
Fungi
-
D.
All of the above
Solution
Starfish can reproduce through fragmentation, where a part of the organism breaks off and develops into a new individual.
Correct Answer:
A
— Starfish
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Q. Which of the following is an example of heat transfer by radiation?
-
A.
Heating a metal rod in a flame
-
B.
Sunlight warming the Earth
-
C.
Boiling water in a pot
-
D.
Heating air in a room
Solution
Sunlight warming the Earth is an example of heat transfer by radiation, as it does not require a medium.
Correct Answer:
B
— Sunlight warming the Earth
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Q. Which of the following is an example of mutualism? (2021)
-
A.
A lion hunting a zebra
-
B.
Bees pollinating flowers
-
C.
A tick feeding on a dog
-
D.
A bird eating ticks off a cow
Solution
Mutualism is a symbiotic relationship where both species benefit, such as bees pollinating flowers.
Correct Answer:
B
— Bees pollinating flowers
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Q. Which of the following is an example of open-source software? (2021)
-
A.
Windows 10
-
B.
macOS
-
C.
Linux
-
D.
Adobe Photoshop
Solution
Linux is an example of open-source software, which means its source code is available for anyone to use and modify.
Correct Answer:
C
— Linux
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Q. Which of the following is an example of optical isomerism?
-
A.
Lactic acid
-
B.
Butane
-
C.
Cyclohexane
-
D.
Acetone
Solution
Lactic acid has a chiral center and can exist as two enantiomers, thus exhibiting optical isomerism.
Correct Answer:
A
— Lactic acid
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Q. Which of the following is an example of physisorption?
-
A.
Adsorption of hydrogen on palladium
-
B.
Adsorption of water on silica gel
-
C.
Adsorption of oxygen on activated charcoal
-
D.
Adsorption of ammonia on copper
Solution
Physisorption involves weak van der Waals forces, and the adsorption of oxygen on activated charcoal is a classic example.
Correct Answer:
C
— Adsorption of oxygen on activated charcoal
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Q. Which of the following is an example of physisorption? (2021) 2021
-
A.
Adsorption of hydrogen on palladium
-
B.
Adsorption of water on silica gel
-
C.
Adsorption of oxygen on activated charcoal
-
D.
Adsorption of ammonia on copper
Solution
Physisorption involves weak Van der Waals forces, and the adsorption of water on silica gel is a classic example of this type of adsorption.
Correct Answer:
B
— Adsorption of water on silica gel
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Q. Which of the following is an example of sexual reproduction? (2023)
-
A.
Budding in hydra
-
B.
Fission in amoeba
-
C.
Pollination in flowering plants
-
D.
Regeneration in planaria
Solution
Pollination in flowering plants is a key process in sexual reproduction, involving the transfer of pollen to fertilize ovules.
Correct Answer:
C
— Pollination in flowering plants
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Q. Which of the following is an example of structural isomerism?
-
A.
Cis-2-butene and trans-2-butene
-
B.
1-bromopropane and 2-bromopropane
-
C.
Glucose and fructose
-
D.
1,2-dichloroethane and 1,1-dichloroethane
Solution
1-bromopropane and 2-bromopropane differ in the position of the bromine atom, showing structural isomerism.
Correct Answer:
B
— 1-bromopropane and 2-bromopropane
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Q. Which of the following is an example of sublimation? (2022)
-
A.
Ice melting
-
B.
Dry ice turning into gas
-
C.
Water boiling
-
D.
Salt dissolving in water
Solution
Sublimation is the process where a solid turns directly into a gas, as seen with dry ice (solid CO2).
Correct Answer:
B
— Dry ice turning into gas
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Q. Which of the following is an example of system software?
-
A.
Microsoft Excel
-
B.
Windows
-
C.
Mozilla Firefox
-
D.
Photoshop
Solution
Windows is an example of system software, while the others are application software.
Correct Answer:
B
— Windows
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Q. Which of the following is an example of tautomeric isomerism?
-
A.
Acetaldehyde and Ethanol
-
B.
Acetone and Propan-2-ol
-
C.
Keto-enol tautomerism
-
D.
Cis and Trans isomers
Solution
Keto-enol tautomerism is a classic example of tautomeric isomerism.
Correct Answer:
C
— Keto-enol tautomerism
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Q. Which of the following is an example of thermal expansion? (2021)
-
A.
A balloon inflating when heated
-
B.
Ice melting in water
-
C.
Water boiling
-
D.
A metal rod contracting in cold
Solution
A balloon inflating when heated is an example of thermal expansion, as the gas inside expands with increased temperature.
Correct Answer:
A
— A balloon inflating when heated
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Q. Which of the following is an extensive property?
-
A.
Temperature
-
B.
Pressure
-
C.
Volume
-
D.
Density
Solution
Volume is an extensive property, as it depends on the amount of substance present.
Correct Answer:
C
— Volume
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Q. Which of the following is an identity matrix? (2019)
-
A.
[[1, 0], [0, 1]]
-
B.
[[1, 1], [1, 1]]
-
C.
[[0, 1], [1, 0]]
-
D.
[[2, 0], [0, 2]]
Solution
An identity matrix is a square matrix with ones on the diagonal and zeros elsewhere. The matrix [[1, 0], [0, 1]] fits this definition.
Correct Answer:
A
— [[1, 0], [0, 1]]
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Q. Which of the following is an identity?
-
A.
sin^2 x + cos^2 x = 1
-
B.
tan x = sin x / cos x
-
C.
sec x = 1/cos x
-
D.
All of the above
Solution
All the given options are trigonometric identities.
Correct Answer:
D
— All of the above
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Q. Which of the following is an input device? (2020)
-
A.
Monitor
-
B.
Keyboard
-
C.
Printer
-
D.
Speaker
Solution
A keyboard is an input device used to enter data into a computer.
Correct Answer:
B
— Keyboard
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Q. Which of the following is an irrational number?
Solution
√4 = 2, 0.25 = 1/4, and 1 is rational. √2 is irrational.
Correct Answer:
B
— √2
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Q. Which of the following is an operating system?
-
A.
Microsoft Word
-
B.
Linux
-
C.
Adobe Photoshop
-
D.
Google Chrome
Solution
Linux is an operating system, while the others are applications.
Correct Answer:
B
— Linux
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Q. Which of the following is asexual reproduction? (2019)
-
A.
Budding in hydra
-
B.
Fertilization in frogs
-
C.
Pollination in flowering plants
-
D.
Binary fission in amoeba
Solution
Binary fission in amoeba is a form of asexual reproduction where a single organism divides into two.
Correct Answer:
D
— Binary fission in amoeba
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Q. Which of the following is awarded for excellence in architecture?
-
A.
Pritzker Prize
-
B.
Nobel Prize
-
C.
Grammy Award
-
D.
Tony Award
Solution
The Pritzker Prize is awarded annually to honor a living architect for their significant contributions to humanity and the built environment.
Correct Answer:
A
— Pritzker Prize
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Q. Which of the following is considered a factor of production? (2022)
-
A.
Money
-
B.
Land
-
C.
Government
-
D.
Trade
Solution
Land is considered a factor of production, along with labor and capital, as it is a resource used to produce goods and services.
Correct Answer:
B
— Land
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Q. Which of the following is considered a peripheral device? (2020)
-
A.
Motherboard
-
B.
RAM
-
C.
Printer
-
D.
CPU
Solution
A printer is an external device that connects to a computer to produce a hard copy of documents, making it a peripheral device.
Correct Answer:
C
— Printer
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Q. Which of the following is considered the brain of the computer?
-
A.
RAM
-
B.
CPU
-
C.
Hard Drive
-
D.
Motherboard
Solution
The CPU (Central Processing Unit) is known as the brain of the computer as it performs all the calculations and processing.
Correct Answer:
B
— CPU
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