Q. Which of the following enzymes is secreted by the pancreas? (2020)
-
A.
Pepsin
-
B.
Amylase
-
C.
Trypsin
-
D.
Both Amylase and Trypsin
Solution
Both amylase and trypsin are enzymes secreted by the pancreas to aid in digestion.
Correct Answer: D — Both Amylase and Trypsin
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Q. Which of the following equations represents Bernoulli's principle?
-
A.
P + 1/2 ρv² + ρgh = constant
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B.
P = ρgh
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C.
F = ma
-
D.
V = IR
Solution
Bernoulli's principle is represented by the equation P + 1/2 ρv² + ρgh = constant, relating pressure, velocity, and height in a fluid.
Correct Answer: A — P + 1/2 ρv² + ρgh = constant
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Q. Which of the following f-block elements is used in making strong permanent magnets? (2022)
-
A.
Cerium
-
B.
Neodymium
-
C.
Plutonium
-
D.
Uranium
Solution
Neodymium is used in making strong permanent magnets, known as neodymium magnets.
Correct Answer: B — Neodymium
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Q. Which of the following factors does NOT affect the gravitational force between two masses? (2023)
-
A.
Mass of the first object
-
B.
Mass of the second object
-
C.
Distance between the objects
-
D.
Color of the objects
Solution
The color of the objects does not affect the gravitational force between them.
Correct Answer: D — Color of the objects
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Q. Which of the following factors does NOT affect the gravitational force between two objects? (2021)
-
A.
Mass of the objects
-
B.
Distance between the objects
-
C.
Shape of the objects
-
D.
Gravitational constant
Solution
The shape of the objects does not affect the gravitational force; only mass and distance do.
Correct Answer: C — Shape of the objects
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Q. Which of the following factors does NOT affect the rate of transpiration? (2022)
-
A.
Humidity
-
B.
Temperature
-
C.
Wind speed
-
D.
Soil type
Solution
Soil type does not directly affect the rate of transpiration; however, it can influence water availability.
Correct Answer: D — Soil type
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Q. Which of the following factors does NOT affect the tensile strength of a material? (2022)
-
A.
Temperature
-
B.
Material composition
-
C.
Length of the specimen
-
D.
Cross-sectional area
Solution
The length of the specimen does not affect tensile strength; it is an intrinsic property of the material.
Correct Answer: C — Length of the specimen
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Q. Which of the following factors is considered an abiotic factor? (2019)
-
A.
Fungi
-
B.
Bacteria
-
C.
Sunlight
-
D.
Plants
Solution
Abiotic factors are non-living chemical and physical components of the environment, such as sunlight, temperature, and water.
Correct Answer: C — Sunlight
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Q. Which of the following functional groups is present in alcohols? (2019)
-
A.
-OH
-
B.
-COOH
-
C.
-NH2
-
D.
-CHO
Solution
Alcohols contain the hydroxyl functional group (-OH).
Correct Answer: A — -OH
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Q. Which of the following gases behaves most like an ideal gas? (2023)
-
A.
Helium
-
B.
Carbon dioxide
-
C.
Water vapor
-
D.
Ammonia
Solution
Helium behaves most like an ideal gas due to its low intermolecular forces and small size, making it closer to the ideal gas behavior.
Correct Answer: A — Helium
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Q. Which of the following gases would have the highest average speed at the same temperature? (2020)
-
A.
Oxygen (O2)
-
B.
Nitrogen (N2)
-
C.
Hydrogen (H2)
-
D.
Carbon Dioxide (CO2)
Solution
At the same temperature, lighter gases have higher average speeds. Hydrogen (H2) has the lowest molar mass and thus the highest average speed.
Correct Answer: C — Hydrogen (H2)
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Q. Which of the following groups includes only multicellular organisms? (2018)
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A.
Monera
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B.
Protista
-
C.
Fungi
-
D.
Animalia
Solution
The kingdom Animalia includes only multicellular organisms.
Correct Answer: D — Animalia
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Q. Which of the following groups is characterized by the presence of a nucleus? (2023)
-
A.
Bacteria
-
B.
Archaea
-
C.
Eukarya
-
D.
Monera
Solution
Eukarya is characterized by the presence of a true nucleus in its cells.
Correct Answer: C — Eukarya
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Q. Which of the following groups is known for being prokaryotic? (2018)
-
A.
Protozoa
-
B.
Fungi
-
C.
Bacteria
-
D.
Algae
Solution
Bacteria are known for being prokaryotic organisms.
Correct Answer: C — Bacteria
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Q. Which of the following groups of animals is characterized by having feathers? (2021)
-
A.
Mammals
-
B.
Reptiles
-
C.
Birds
-
D.
Amphibians
Solution
Birds are the only group of animals that possess feathers, which are essential for flight and insulation.
Correct Answer: C — Birds
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Q. Which of the following groups of animals is characterized by the presence of feathers? (2021)
-
A.
Mammals
-
B.
Reptiles
-
C.
Birds
-
D.
Amphibians
Solution
Birds are the only group of animals characterized by the presence of feathers.
Correct Answer: C — Birds
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Q. Which of the following groups of animals is known for having a three-chambered heart? (2020)
-
A.
Fish
-
B.
Amphibians
-
C.
Reptiles
-
D.
Birds
Solution
Amphibians typically have a three-chambered heart, consisting of two atria and one ventricle.
Correct Answer: B — Amphibians
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Q. Which of the following groups of animals is known for having a water vascular system? (2020)
-
A.
Mollusca
-
B.
Echinodermata
-
C.
Annelida
-
D.
Arthropoda
Solution
Echinodermata, such as starfish and sea urchins, possess a unique water vascular system used for locomotion and feeding.
Correct Answer: B — Echinodermata
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Q. Which of the following groups of organisms is classified under the kingdom Animalia? (2023)
-
A.
Mushrooms
-
B.
Bacteria
-
C.
Insects
-
D.
Algae
Solution
Insects are classified under the kingdom Animalia.
Correct Answer: C — Insects
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Q. Which of the following groups of organisms is classified under the kingdom Protista? (2018)
-
A.
Mushrooms
-
B.
Algae
-
C.
Worms
-
D.
Insects
Solution
Algae are classified under the kingdom Protista.
Correct Answer: B — Algae
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Q. Which of the following groups of organisms is known for having a cell wall made of cellulose? (2023)
-
A.
Fungi
-
B.
Bacteria
-
C.
Plants
-
D.
Protozoa
Solution
Plants have a cell wall made of cellulose, which is a defining characteristic.
Correct Answer: C — Plants
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Q. Which of the following groups of organisms is known for having a true nucleus? (2023)
-
A.
Bacteria
-
B.
Viruses
-
C.
Archaea
-
D.
Eukarya
Solution
Eukarya is the group of organisms that have a true nucleus.
Correct Answer: D — Eukarya
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Q. Which of the following groups of plants is known for having seeds? (2022)
-
A.
Mosses
-
B.
Ferns
-
C.
Gymnosperms
-
D.
Algae
Solution
Gymnosperms are known for having seeds, which are not enclosed in fruits.
Correct Answer: C — Gymnosperms
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Q. Which of the following groups of plants is known for having true roots, stems, and leaves? (2018)
-
A.
Bryophytes
-
B.
Pteridophytes
-
C.
Algae
-
D.
Fungi
Solution
Pteridophytes are known for having true roots, stems, and leaves.
Correct Answer: B — Pteridophytes
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Q. Which of the following groups of plants is known for producing seeds? (2023)
-
A.
Mosses
-
B.
Ferns
-
C.
Gymnosperms
-
D.
Liverworts
Solution
Gymnosperms are known for producing seeds, which are not enclosed in an ovary.
Correct Answer: C — Gymnosperms
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Q. Which of the following groups of plants is known for producing spores? (2021)
-
A.
Angiosperms
-
B.
Gymnosperms
-
C.
Pteridophytes
-
D.
Bryophytes
Solution
Pteridophytes are known for producing spores as a means of reproduction.
Correct Answer: C — Pteridophytes
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Q. Which of the following groups of plants is primarily aquatic? (2019)
-
A.
Bryophytes
-
B.
Pteridophytes
-
C.
Angiosperms
-
D.
Gymnosperms
Solution
Bryophytes, such as mosses and liverworts, are primarily aquatic and require water for reproduction.
Correct Answer: A — Bryophytes
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Q. Which of the following groups of plants reproduce through spores? (2022)
-
A.
Angiosperms
-
B.
Gymnosperms
-
C.
Pteridophytes
-
D.
All of the above
Solution
Pteridophytes reproduce through spores, while angiosperms and gymnosperms reproduce through seeds.
Correct Answer: C — Pteridophytes
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Q. Which of the following haloalkanes can undergo elimination reaction more readily? (2023)
-
A.
1-bromopropane
-
B.
2-bromopropane
-
C.
3-bromopropane
-
D.
Bromobenzene
Solution
Tertiary haloalkanes like 3-bromopropane can undergo elimination reactions more readily due to the stability of the resulting alkene.
Correct Answer: C — 3-bromopropane
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Q. Which of the following haloalkanes can undergo elimination reaction to form an alkene? (2021)
-
A.
1-bromopropane
-
B.
2-bromobutane
-
C.
Bromobenzene
-
D.
Chloroethane
Solution
2-bromobutane can undergo elimination to form an alkene due to the presence of a beta-hydrogen.
Correct Answer: B — 2-bromobutane
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