Q. What is the term for the transition from liquid to gas at temperatures below the boiling point?
A.
Evaporation
B.
Condensation
C.
Sublimation
D.
Freezing
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Solution
Evaporation is the process of a liquid turning into gas below its boiling point.
Correct Answer:
A
— Evaporation
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Q. What is the term for the transition from liquid to gas?
A.
Condensation
B.
Evaporation
C.
Sublimation
D.
Freezing
Show solution
Solution
Evaporation is the process where liquid turns into gas.
Correct Answer:
B
— Evaporation
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Q. What is the term for the transition from solid to gas without passing through the liquid state?
A.
Sublimation
B.
Deposition
C.
Evaporation
D.
Condensation
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Solution
Sublimation is the process where a solid turns directly into a gas.
Correct Answer:
A
— Sublimation
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Q. What is the term for the upward force exerted by a fluid on an object submerged in it?
A.
Buoyancy
B.
Weight
C.
Pressure
D.
Density
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Solution
The upward force exerted by a fluid on a submerged object is known as buoyancy.
Correct Answer:
A
— Buoyancy
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Q. What is the term for the upward force experienced by an object submerged in a fluid?
A.
Buoyancy
B.
Weight
C.
Pressure
D.
Density
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Solution
The upward force experienced by an object submerged in a fluid is known as buoyancy.
Correct Answer:
A
— Buoyancy
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Q. What is the term for the variety of life in the world or in a particular habitat or ecosystem? (2020)
A.
Biodiversity
B.
Ecology
C.
Biogeography
D.
Conservation
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Solution
Biodiversity refers to the variety of life in the world or in a particular habitat or ecosystem, encompassing species diversity, genetic diversity, and ecosystem diversity.
Correct Answer:
A
— Biodiversity
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Q. What is the term for the variety of life in the world or in a particular habitat? (2021)
A.
Ecosystem
B.
Biodiversity
C.
Habitat
D.
Population
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Solution
Biodiversity refers to the variety of life in the world or in a particular habitat, including the variety of species, genetic diversity, and ecosystem diversity.
Correct Answer:
B
— Biodiversity
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Q. What is the term for the volume of air that can be forcibly exhaled after a normal exhalation? (2023)
A.
Tidal volume
B.
Vital capacity
C.
Expiratory reserve volume
D.
Inspiratory reserve volume
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Solution
Expiratory reserve volume is the amount of air that can be forcibly exhaled after the end of a normal exhalation.
Correct Answer:
C
— Expiratory reserve volume
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Q. What is the term independent of x in the expansion of (2x - 3)^8?
A.
-256
B.
256
C.
-512
D.
512
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Solution
The term independent of x is given by C(8,4) * (2x)^4 * (-3)^4 = 70 * 16 * 81 = -256.
Correct Answer:
A
— -256
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Q. What is the term independent of x in the expansion of (3x - 2)^6?
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Solution
The term independent of x occurs when k = 3. Using the binomial theorem, the term is C(6,3) * (3x)^3 * (-2)^(6-3) = 20 * 27 * -8 = -4320.
Correct Answer:
C
— 40
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Q. What is the term independent of x in the expansion of (3x - 4)^7?
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Solution
The term independent of x occurs when k = 7, C(7, 3) * (3)^3 * (-4)^4 = 35 * 27 * 256 = 84.
Correct Answer:
C
— 84
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Q. What is the term of office for the members of the Rajya Sabha? (2019)
A.
3 years
B.
4 years
C.
5 years
D.
6 years
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Solution
Members of the Rajya Sabha serve a term of 6 years, with one-third of the members retiring every two years.
Correct Answer:
D
— 6 years
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Q. What is the term of office for the President of India? (2021)
A.
3 years
B.
4 years
C.
5 years
D.
6 years
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Solution
The President of India is elected for a term of 5 years, as per Article 56 of the Constitution.
Correct Answer:
C
— 5 years
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Q. What is the term of the President of India as per the Constitution?
A.
4 years
B.
5 years
C.
6 years
D.
3 years
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Solution
The President of India is elected for a term of 5 years as per Article 56 of the Indian Constitution.
Correct Answer:
B
— 5 years
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Q. What is the term of the Rajya Sabha members? (2022)
A.
5 years
B.
6 years
C.
4 years
D.
3 years
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Solution
Members of the Rajya Sabha serve a term of 6 years, with one-third of the members retiring every two years.
Correct Answer:
B
— 6 years
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Q. What is the term used for the amount of solute that can be adsorbed per unit mass of adsorbent?
A.
Adsorption isotherm
B.
Adsorption capacity
C.
Adsorption efficiency
D.
Adsorption rate
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Solution
The term 'adsorption capacity' refers to the amount of solute that can be adsorbed per unit mass of adsorbent.
Correct Answer:
B
— Adsorption capacity
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Q. What is the term used for the division of powers between the central and state governments?
A.
Separation of Powers
B.
Federalism
C.
Unitary System
D.
Decentralization
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Solution
Federalism refers to the division of powers between the central and state governments in India.
Correct Answer:
B
— Federalism
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Q. What is the term used for the maximum amount of solute that can be adsorbed on a surface? (2023)
A.
Saturation point
B.
Adsorption isotherm
C.
Langmuir constant
D.
Adsorption capacity
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Solution
The term 'adsorption capacity' refers to the maximum amount of solute that can be adsorbed on a surface under specific conditions.
Correct Answer:
D
— Adsorption capacity
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Q. What is the term used for the process of removing adsorbed molecules from a surface? (2020)
A.
Desorption
B.
Absorption
C.
Sorption
D.
Adsorption
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Solution
Desorption is the process of removing adsorbed molecules from a surface, while adsorption is the process of molecules adhering to a surface.
Correct Answer:
A
— Desorption
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Q. What is the term used for the scientific study of classification? (2022)
A.
Phylogeny
B.
Taxonomy
C.
Morphology
D.
Ecology
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Solution
Taxonomy is the scientific study of classification, naming, and identifying organisms.
Correct Answer:
B
— Taxonomy
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Q. What is the term used for the scientific study of living organisms? (2020)
A.
Biology
B.
Zoology
C.
Botany
D.
Ecology
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Solution
Biology is the scientific study of living organisms.
Correct Answer:
A
— Biology
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Q. What is the term used for the study of living organisms? (2021)
A.
Biology
B.
Zoology
C.
Botany
D.
Ecology
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Solution
Biology is the term used for the study of living organisms.
Correct Answer:
A
— Biology
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Q. What is the theoretical yield of Na2SO4 when 10 g of Na reacts with excess sulfuric acid?
A.
20 g
B.
30 g
C.
40 g
D.
50 g
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Solution
10 g of Na = 0.434 moles. 2Na + H2SO4 → Na2SO4 + H2. 0.434 moles of Na2SO4 = 0.434 * 142 g = 61.6 g.
Correct Answer:
B
— 30 g
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Q. What is the theoretical yield of NaCl when 23 g of Na reacts with Cl2?
A.
58.5 g
B.
23 g
C.
46 g
D.
69 g
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Solution
23 g of Na = 1 mole. 1 mole of Na produces 1 mole of NaCl = 58.5 g.
Correct Answer:
A
— 58.5 g
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Q. What is the theoretical yield of NaCl when 23 g of Na reacts with excess Cl2?
A.
58.5 g
B.
23 g
C.
46 g
D.
11.5 g
Show solution
Solution
23 g of Na = 1 mole. 1 mole of Na produces 1 mole of NaCl = 58.5 g.
Correct Answer:
A
— 58.5 g
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Q. What is the thermal conductivity of a material if a 1 m² area of it conducts 100 J of heat in 10 seconds with a temperature difference of 20°C?
A.
2 W/m°C
B.
5 W/m°C
C.
10 W/m°C
D.
20 W/m°C
Show solution
Solution
Using the formula Q = kA(T1-T2)t, we find k = Q / (A(T1-T2)t) = 100 J / (1 m² * 20°C * 10 s) = 0.5 W/m°C.
Correct Answer:
B
— 5 W/m°C
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Q. What is the threshold frequency for a metal if the work function is 4.5 eV?
A.
5.4 x 10^14 Hz
B.
6.0 x 10^14 Hz
C.
7.2 x 10^14 Hz
D.
8.0 x 10^14 Hz
Show solution
Solution
Threshold frequency (ν₀) = Work function (Φ) / h = 4.5 eV / (4.14 x 10^-15 eV·s) = 5.4 x 10^14 Hz.
Correct Answer:
A
— 5.4 x 10^14 Hz
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Q. What is the threshold of hearing in decibels?
A.
0 dB
B.
10 dB
C.
20 dB
D.
30 dB
Show solution
Solution
The threshold of hearing is defined as 0 dB.
Correct Answer:
A
— 0 dB
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Q. What is the threshold of hearing in terms of sound intensity level?
A.
0 dB
B.
10 dB
C.
20 dB
D.
30 dB
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Solution
The threshold of hearing is defined as 0 dB, which corresponds to the faintest sound that can be heard by the average human ear.
Correct Answer:
A
— 0 dB
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Q. What is the time difference between GMT and IST (Indian Standard Time)?
A.
4 hours 30 minutes
B.
5 hours 30 minutes
C.
6 hours 30 minutes
D.
7 hours 30 minutes
Show solution
Solution
IST is GMT + 5 hours 30 minutes.
Correct Answer:
B
— 5 hours 30 minutes
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