Q. Which of the following layers is responsible for tectonic plate movement? (2022)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Mantle, particularly the asthenosphere, is responsible for the movement of tectonic plates due to convection currents.
Correct Answer:
B
— Mantle
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Q. Which of the following layers is solid? (2022)
-
A.
Crust
-
B.
Outer Core
-
C.
Inner Core
-
D.
Mantle
Solution
The Inner Core is solid due to the immense pressure, despite its high temperature.
Correct Answer:
C
— Inner Core
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Q. Which of the following layers is the hottest part of the Earth? (2022)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Inner Core is the hottest part of the Earth, with temperatures reaching up to 5,700 degrees Celsius.
Correct Answer:
D
— Inner Core
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Q. Which of the following layers is the thickest part of the Earth? (2023)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The mantle is the thickest layer of the Earth, making up about 84% of Earth's total volume.
Correct Answer:
B
— Mantle
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Q. Which of the following layers is the thickest?
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The mantle is the thickest layer of the Earth, extending about 2900 km.
Correct Answer:
B
— Mantle
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Q. Which of the following leaders was associated with the Civil Disobedience Movement? (1930)
-
A.
Jawaharlal Nehru
-
B.
Mahatma Gandhi
-
C.
Subhas Chandra Bose
-
D.
Sardar Vallabhbhai Patel
Solution
Mahatma Gandhi was the key leader associated with the Civil Disobedience Movement, which started in 1930.
Correct Answer:
B
— Mahatma Gandhi
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Q. Which of the following longitudes is closest to the International Date Line?
-
A.
150°E
-
B.
180°
-
C.
150°W
-
D.
120°W
Solution
The International Date Line is at 180°, so the closest longitude is 180°.
Correct Answer:
B
— 180°
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Q. Which of the following materials has the highest speed of sound?
-
A.
Air
-
B.
Water
-
C.
Steel
-
D.
Wood
Solution
Sound travels fastest in solids; hence, the speed of sound in steel is higher than in air, water, or wood.
Correct Answer:
C
— Steel
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Q. Which of the following materials is the best conductor of sound?
-
A.
Air
-
B.
Water
-
C.
Steel
-
D.
Wood
Solution
Sound travels fastest in solids, and steel is a solid material that conducts sound well.
Correct Answer:
C
— Steel
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Q. Which of the following materials would sound travel fastest through? (2019)
-
A.
Air
-
B.
Water
-
C.
Steel
-
D.
Wood
Solution
Sound travels fastest through solids like steel due to closely packed molecules.
Correct Answer:
C
— Steel
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Q. Which of the following metals is known for its resistance to corrosion? (2019)
-
A.
Iron
-
B.
Copper
-
C.
Aluminum
-
D.
Gold
Solution
Gold is highly resistant to corrosion, which is why it is often used in jewelry and electronics.
Correct Answer:
D
— Gold
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Q. Which of the following metals is known to be the least reactive?
-
A.
Gold
-
B.
Sodium
-
C.
Potassium
-
D.
Calcium
Solution
Gold is known to be the least reactive metal, making it resistant to corrosion and oxidation.
Correct Answer:
A
— Gold
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Q. Which of the following metals is known to be the most malleable?
-
A.
Iron
-
B.
Gold
-
C.
Lead
-
D.
Copper
Solution
Gold is known to be the most malleable metal, capable of being drawn into extremely thin sheets.
Correct Answer:
B
— Gold
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Q. Which of the following metals is known to react vigorously with water? (2022)
-
A.
Iron
-
B.
Sodium
-
C.
Copper
-
D.
Lead
Solution
Sodium reacts vigorously with water to produce sodium hydroxide and hydrogen gas.
Correct Answer:
B
— Sodium
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Q. Which of the following metals is known to react with water at room temperature? (2019)
-
A.
Iron
-
B.
Sodium
-
C.
Copper
-
D.
Gold
Solution
Sodium reacts vigorously with water at room temperature, producing sodium hydroxide and hydrogen gas.
Correct Answer:
B
— Sodium
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Q. Which of the following metals is liquid at room temperature? (2023)
-
A.
Mercury
-
B.
Lead
-
C.
Tin
-
D.
Bismuth
Solution
Mercury is the only metal that is liquid at room temperature.
Correct Answer:
A
— Mercury
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Q. Which of the following metals is most reactive? (2019)
-
A.
Gold
-
B.
Silver
-
C.
Sodium
-
D.
Copper
Solution
Sodium is a highly reactive metal, especially with water, compared to the other metals listed.
Correct Answer:
C
— Sodium
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Q. Which of the following metals is the best conductor of electricity?
-
A.
Copper
-
B.
Aluminum
-
C.
Gold
-
D.
Silver
Solution
Silver is the best conductor of electricity among metals due to its high electron mobility.
Correct Answer:
D
— Silver
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Q. Which of the following metals is used in making aircraft due to its lightweight? (2020)
-
A.
Lead
-
B.
Aluminum
-
C.
Iron
-
D.
Copper
Solution
Aluminum is widely used in aircraft manufacturing because of its lightweight and strength.
Correct Answer:
B
— Aluminum
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Q. Which of the following metals is used in making alloys?
-
A.
Mercury
-
B.
Tin
-
C.
Bismuth
-
D.
Lead
Solution
Tin is commonly used in making alloys, such as bronze when combined with copper.
Correct Answer:
B
— Tin
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Q. Which of the following metals is used in making electrical wires?
-
A.
Zinc
-
B.
Copper
-
C.
Aluminum
-
D.
Iron
Solution
Copper is widely used in electrical wiring due to its excellent conductivity.
Correct Answer:
B
— Copper
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Q. Which of the following metals reacts vigorously with water?
-
A.
Copper
-
B.
Sodium
-
C.
Iron
-
D.
Gold
Solution
Sodium reacts vigorously with water to produce sodium hydroxide and hydrogen gas.
Correct Answer:
B
— Sodium
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Q. Which of the following mountain ranges is located in India?
-
A.
Andes
-
B.
Himalayas
-
C.
Rockies
-
D.
Alps
Solution
The Himalayas are the major mountain range located in India.
Correct Answer:
B
— Himalayas
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Q. Which of the following non-metals is a gas at room temperature?
-
A.
Phosphorus
-
B.
Sulfur
-
C.
Chlorine
-
D.
Carbon
Solution
Chlorine is a non-metal that exists as a gas at room temperature.
Correct Answer:
C
— Chlorine
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Q. Which of the following non-metals is a good insulator? (2023)
-
A.
Graphite
-
B.
Sulfur
-
C.
Phosphorus
-
D.
Diamond
Solution
Diamond is a non-metal that is a good insulator due to its strong covalent bonds.
Correct Answer:
D
— Diamond
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Q. Which of the following non-metals is a key component of DNA?
-
A.
Oxygen
-
B.
Nitrogen
-
C.
Carbon
-
D.
Hydrogen
Solution
Nitrogen is a key component of DNA, forming part of the nucleotides that make up the genetic code.
Correct Answer:
B
— Nitrogen
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Q. Which of the following non-metals is used in fertilizers?
-
A.
Nitrogen
-
B.
Oxygen
-
C.
Helium
-
D.
Argon
Solution
Nitrogen is a key component in fertilizers, promoting plant growth.
Correct Answer:
A
— Nitrogen
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Q. Which of the following processes occurs in the chloroplasts? (2019)
-
A.
Glycolysis
-
B.
Krebs cycle
-
C.
Photosynthesis
-
D.
Fermentation
Solution
Photosynthesis occurs in chloroplasts, where light energy is converted into chemical energy in the form of glucose.
Correct Answer:
C
— Photosynthesis
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Q. Which of the following processes occurs in the nucleus of a cell? (2023)
-
A.
Photosynthesis
-
B.
Cell respiration
-
C.
DNA replication
-
D.
Protein synthesis
Solution
DNA replication occurs in the nucleus, where the cell's genetic material is housed.
Correct Answer:
C
— DNA replication
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Q. Which of the following rights is available only to citizens and not to foreigners?
-
A.
Right to Equality
-
B.
Right to Freedom of Speech
-
C.
Right to Constitutional Remedies
-
D.
Right to Freedom of Religion
Solution
The Right to Constitutional Remedies is available only to citizens of India as per Article 32.
Correct Answer:
C
— Right to Constitutional Remedies
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Showing 1801 to 1830 of 1958 (66 Pages)