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 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 leaders is associated with the concept of 'Swaraj' during the Indian Freedom Struggle? (1920)
-
A.
Mahatma Gandhi
-
B.
Bal Gangadhar Tilak
-
C.
Jawaharlal Nehru
-
D.
Subhas Chandra Bose
Solution
Mahatma Gandhi is most closely associated with the concept of 'Swaraj', which means self-rule, during the Indian Freedom Struggle.
Correct Answer: A — Mahatma Gandhi
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Q. Which of the following leaders is associated with the formation of the Indian National Congress in 1885?
-
A.
A.O. Hume
-
B.
Bal Gangadhar Tilak
-
C.
Gopal Krishna Gokhale
-
D.
Dadabhai Naoroji
Solution
A.O. Hume, a retired British civil servant, played a crucial role in the formation of the Indian National Congress in 1885.
Correct Answer: A — A.O. Hume
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Q. Which of the following leaders is known for advocating the rights of the untouchables in India during the early 20th century? (1949)
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A.
Mahatma Gandhi
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B.
B.R. Ambedkar
-
C.
Jawaharlal Nehru
-
D.
Sardar Vallabhbhai Patel
Solution
B.R. Ambedkar was a prominent leader who fought for the rights of untouchables and played a crucial role in drafting the Indian Constitution.
Correct Answer: B — B.R. Ambedkar
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Q. Which of the following leaders is known for his role in the Russian Revolution of 1917? (1917)
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A.
Leon Trotsky
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B.
Vladimir Lenin
-
C.
Joseph Stalin
-
D.
Mikhail Gorbachev
Solution
Vladimir Lenin was a key figure in the Russian Revolution of 1917, leading the Bolshevik Party to power.
Correct Answer: B — Vladimir Lenin
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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 levels of organization is the highest? (2020)
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A.
Cell
-
B.
Tissue
-
C.
Organ
-
D.
Organism
Solution
The organism level of organization is the highest, as it encompasses all systems and structures functioning together as a single living entity.
Correct Answer: D — Organism
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Q. Which of the following ligands is a strong field ligand?
-
A.
I-
-
B.
Br-
-
C.
CN-
-
D.
Cl-
Solution
CN- is a strong field ligand and causes a large splitting of d-orbitals, leading to low-spin complexes.
Correct Answer: C — CN-
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Q. Which of the following ligands is a strong field ligand? (2021) 2021
-
A.
I-
-
B.
Br-
-
C.
CN-
-
D.
Cl-
Solution
CN- is a strong field ligand that causes a large splitting of d-orbitals, leading to low-spin complexes.
Correct Answer: C — CN-
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Q. Which of the following lines is parallel to the line 3x - 4y + 5 = 0?
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A.
6x - 8y + 10 = 0
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B.
4x + 3y - 7 = 0
-
C.
3x + 4y - 5 = 0
-
D.
2x - 3y + 1 = 0
Solution
Parallel lines have the same slope. The slope of the given line is 3/4, and the line 6x - 8y + 10 = 0 also has the same slope.
Correct Answer: A — 6x - 8y + 10 = 0
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Q. Which of the following lines is parallel to the line 4x - 5y + 10 = 0?
-
A.
y = (4/5)x + 2
-
B.
y = (5/4)x - 1
-
C.
y = (4/5)x - 3
-
D.
y = (-5/4)x + 1
Solution
The slope of the given line is 4/5. A line parallel to it must have the same slope, hence y = (4/5)x - 3.
Correct Answer: C — y = (4/5)x - 3
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Q. Which of the following lines is perpendicular to the line y = 3x + 1?
-
A.
y = -1/3x + 2
-
B.
y = 3x - 1
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C.
y = 1/3x + 1
-
D.
y = -3x + 1
Solution
The slope of the given line is 3. The slope of a line perpendicular to it is -1/3.
Correct Answer: A — y = -1/3x + 2
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Q. Which of the following linking words indicates addition? (2021)
-
A.
Nevertheless
-
B.
Furthermore
-
C.
On the contrary
-
D.
Despite
Solution
'Furthermore' is a linking word that indicates addition to a previous statement.
Correct Answer: B — Furthermore
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Q. Which of the following liquids has the highest boiling point?
-
A.
Ethanol
-
B.
Water
-
C.
Benzene
-
D.
Hexane
Solution
Water has a higher boiling point due to strong hydrogen bonding.
Correct Answer: B — Water
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Q. Which of the following liquids has the highest surface tension at room temperature?
-
A.
Water
-
B.
Ethanol
-
C.
Mercury
-
D.
Benzene
Solution
Mercury has a very high surface tension due to strong cohesive forces between its molecules, higher than that of water, ethanol, and benzene.
Correct Answer: C — Mercury
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Q. Which of the following liquids has the highest surface tension?
-
A.
Water
-
B.
Ethanol
-
C.
Benzene
-
D.
Mercury
Solution
Mercury has the highest surface tension due to strong cohesive forces.
Correct Answer: D — Mercury
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Q. Which of the following liquids has the highest viscosity?
-
A.
Water
-
B.
Glycerol
-
C.
Ethanol
-
D.
Acetone
Solution
Glycerol is a thick liquid and has a higher viscosity compared to the others.
Correct Answer: B — Glycerol
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Q. Which of the following liquids has the lowest boiling point?
-
A.
Water
-
B.
Ethanol
-
C.
Benzene
-
D.
Hexane
Solution
Benzene has a lower boiling point compared to water, ethanol, and hexane.
Correct Answer: C — Benzene
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Q. Which of the following liquids is an example of a non-polar liquid?
-
A.
Water
-
B.
Ethanol
-
C.
Benzene
-
D.
Acetic acid
Solution
Benzene is a non-polar liquid, while the others are polar.
Correct Answer: C — Benzene
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Q. Which of the following liquids is considered a non-polar solvent?
-
A.
Water
-
B.
Ethanol
-
C.
Hexane
-
D.
Acetic acid
Solution
Hexane is a non-polar solvent, while the others are polar.
Correct Answer: C — Hexane
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Q. Which of the following liquids is most likely to exhibit strong hydrogen bonding?
-
A.
Hexane
-
B.
Ethanol
-
C.
Chloroform
-
D.
Acetone
Solution
Ethanol can form strong hydrogen bonds due to the presence of an -OH group.
Correct Answer: B — Ethanol
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Q. Which of the following liquids would have the lowest surface tension?
-
A.
Water
-
B.
Mercury
-
C.
Ethanol
-
D.
Oil
Solution
Ethanol has a lower surface tension compared to water and mercury due to its molecular structure.
Correct Answer: C — Ethanol
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Q. Which of the following logarithmic expressions is equivalent to log_10(0.01)?
Solution
Since 0.01 is 10^-2, log_10(0.01) = -2.
Correct Answer: A — -2
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Q. Which of the following logarithmic expressions is equivalent to log_3(81)?
Solution
Since 81 is 3^4, log_3(81) equals 4.
Correct Answer: A — 4
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Q. Which of the following logarithmic expressions is undefined?
-
A.
log_5(0)
-
B.
log_5(1)
-
C.
log_5(5)
-
D.
log_5(25)
Solution
Logarithm of zero is undefined, hence log_5(0) is the correct answer.
Correct Answer: A — log_5(0)
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Q. Which of the following logarithmic identities is incorrect?
-
A.
log_a(b) + log_a(c) = log_a(bc)
-
B.
log_a(b/c) = log_a(b) - log_a(c)
-
C.
log_a(b^c) = c * log_a(b)
-
D.
log_a(b) * log_a(c) = log_a(bc)
Solution
The last identity is incorrect; it should be log_a(b) + log_a(c) = log_a(bc).
Correct Answer: D — log_a(b) * log_a(c) = log_a(bc)
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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 can be used to polarize light?
-
A.
Glass
-
B.
Polaroid film
-
C.
Water
-
D.
Air
Solution
Polaroid film is specifically designed to polarize light by allowing only light waves oscillating in a certain direction to pass through.
Correct Answer: B — Polaroid film
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Q. Which of the following materials has the highest resistivity?
-
A.
Copper
-
B.
Aluminum
-
C.
Silver
-
D.
Rubber
Solution
Rubber is an insulator and has a much higher resistivity compared to metals like copper, aluminum, and silver.
Correct Answer: D — Rubber
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