Q. Which of the following wavelengths of light is least effective for photosynthesis? (2020)
A.
Red light
B.
Blue light
C.
Green light
D.
Yellow light
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Solution
Green light is least effective for photosynthesis because it is mostly reflected by chlorophyll.
Correct Answer: C — Green light
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Q. Which of the following waves can travel through a vacuum?
A.
Sound waves
B.
Water waves
C.
Electromagnetic waves
D.
Seismic waves
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Solution
Electromagnetic waves can travel through a vacuum, while sound waves, water waves, and seismic waves require a medium.
Correct Answer: C — Electromagnetic waves
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Q. Which of the following waves is an example of a longitudinal wave?
A.
Light wave
B.
Sound wave
C.
Water wave
D.
Seismic S-wave
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Solution
A sound wave is an example of a longitudinal wave, where the particle displacement is parallel to the direction of wave propagation.
Correct Answer: B — Sound wave
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Q. Which of the following waves requires a medium for propagation? (2022)
A.
Electromagnetic waves
B.
Sound waves
C.
Light waves
D.
Radio waves
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Solution
Sound waves require a medium (solid, liquid, or gas) for propagation, while electromagnetic waves do not.
Correct Answer: B — Sound waves
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Q. Which of the following waves requires a medium to propagate?
A.
Electromagnetic waves
B.
Sound waves
C.
Light waves
D.
Radio waves
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Solution
Sound waves are mechanical waves that require a medium (solid, liquid, or gas) to propagate, while electromagnetic waves can travel through a vacuum.
Correct Answer: B — Sound waves
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Q. Which of the following waves requires a medium to travel? (2023)
A.
Electromagnetic waves
B.
Sound waves
C.
Radio waves
D.
Light waves
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Solution
Sound waves require a medium (solid, liquid, or gas) to travel, while electromagnetic waves can travel through a vacuum.
Correct Answer: B — Sound waves
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Q. Which of the following welfare schemes focuses on providing employment to rural households in India? (2005)
A.
Mahatma Gandhi National Rural Employment Guarantee Act
B.
National Rural Livelihood Mission
C.
Skill India Mission
D.
Pradhan Mantri Gram Sadak Yojana
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Solution
The Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA) was enacted in 2005 to provide at least 100 days of wage employment in a financial year to every rural household.
Correct Answer: A — Mahatma Gandhi National Rural Employment Guarantee Act
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Q. Which of the following welfare schemes was launched to provide financial assistance to the elderly, widows, and disabled individuals in India? (1995)
A.
Mahatma Gandhi National Rural Employment Guarantee Act
B.
National Social Assistance Programme
C.
Pradhan Mantri Awas Yojana
D.
Integrated Child Development Services
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Solution
The National Social Assistance Programme (NSAP) was launched in 1995 to provide financial assistance to the elderly, widows, and disabled individuals.
Correct Answer: B — National Social Assistance Programme
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Q. Which of the following will exhibit the greatest freezing point depression?
A.
0.1 M NaCl
B.
0.1 M K2SO4
C.
0.1 M CaCl2
D.
0.1 M urea
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Solution
0.1 M K2SO4 will exhibit the greatest freezing point depression due to its van 't Hoff factor of 3.
Correct Answer: C — 0.1 M CaCl2
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Q. Which of the following will exhibit the greatest vapor pressure lowering?
A.
0.1 M NaCl
B.
0.1 M CaCl2
C.
0.1 M K2SO4
D.
0.1 M glucose
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Solution
CaCl2 dissociates into three ions (Ca2+ and 2 Cl-), leading to the greatest vapor pressure lowering among the options.
Correct Answer: B — 0.1 M CaCl2
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Q. Which of the following will exhibit the lowest vapor pressure?
A.
Pure water
B.
0.1 M NaCl solution
C.
0.1 M KCl solution
D.
0.1 M glucose solution
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Solution
The 0.1 M NaCl solution will exhibit the lowest vapor pressure due to the presence of more solute particles (2 ions per formula unit).
Correct Answer: B — 0.1 M NaCl solution
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Q. Which of the following will have the highest pH?
A.
0.1 M HCl
B.
0.1 M NaOH
C.
0.1 M CH3COOH
D.
0.1 M NH4Cl
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Solution
0.1 M NaOH is a strong base and will have the highest pH compared to the other options.
Correct Answer: B — 0.1 M NaOH
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Q. Which of the following will have the lowest boiling point?
A.
0.1 M NaCl
B.
0.1 M KBr
C.
0.1 M MgCl2
D.
0.1 M C6H12O6
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Solution
C6H12O6 does not dissociate, while the others do, leading to higher boiling points.
Correct Answer: D — 0.1 M C6H12O6
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Q. Which of the following will have the lowest freezing point?
A.
0.1 m NaCl
B.
0.1 m KBr
C.
0.1 m MgCl2
D.
0.1 m C6H12O6
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Solution
0.1 m MgCl2 produces 3 particles (Mg2+ and 2 Cl-), leading to the lowest freezing point among the options.
Correct Answer: C — 0.1 m MgCl2
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Q. Which of the following will have the lowest vapor pressure?
A.
Pure solvent
B.
0.1 M NaCl
C.
0.1 M KCl
D.
0.1 M CaCl2
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Solution
0.1 M CaCl2 produces the most particles in solution (3 ions), leading to the lowest vapor pressure.
Correct Answer: D — 0.1 M CaCl2
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Q. Which of the following words best captures the author's attitude towards the current state of inequality?
A.
Pessimistic.
B.
Indifferent.
C.
Concerned.
D.
Skeptical.
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Solution
The author expresses concern about the persistence and impact of inequality in society.
Correct Answer: C — Concerned.
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Q. Which of the following words best captures the author's view on the importance of diversity in the workplace? (2023)
A.
Essential
B.
Optional
C.
Detrimental
D.
Irrelevant
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Solution
The author emphasizes that diversity is essential for fostering innovation and creativity in the workplace.
Correct Answer: A — Essential
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Q. Which of the following words best captures the author's view on the role of teachers in a technology-driven classroom?
A.
Obsolete
B.
Facilitators
C.
Dictators
D.
Irrelevant
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Solution
The author views teachers as facilitators who guide students in a technology-driven classroom rather than as traditional authority figures.
Correct Answer: B — Facilitators
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Q. Which of the following words best captures the author's view on the urgency of addressing inequalities?
A.
Critical.
B.
Optional.
C.
Negligible.
D.
Controversial.
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Solution
The author emphasizes the critical nature of addressing inequalities, suggesting it is an urgent issue.
Correct Answer: A — Critical.
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Q. Which of the following words best captures the essence of 'biodiversity' as used in the passage?
A.
Variety.
B.
Uniformity.
C.
Scarcity.
D.
Simplicity.
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Solution
The term 'biodiversity' refers to the variety of life in the world, making option 0 the best choice.
Correct Answer: A — Variety.
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Q. Which of the following words best captures the essence of digital sum as described in the passage? (2023)
A.
Obsolete.
B.
Innovative.
C.
Complicated.
D.
Irrelevant.
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Solution
The passage describes digital sum as innovative, reflecting its role in advancing technology.
Correct Answer: B — Innovative.
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Q. Which of the following words best captures the essence of the author's perspective on social media?
A.
Beneficial
B.
Detrimental
C.
Ambivalent
D.
Irrelevant
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Solution
The author presents a mixed view, acknowledging both benefits and drawbacks, which aligns with the term 'ambivalent'.
Correct Answer: C — Ambivalent
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Q. Which of the following words best describes the author's use of language?
A.
Colloquial
B.
Technical
C.
Ambiguous
D.
Verbose
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Solution
The author uses technical language appropriate for the subject matter, which is common in scientific discussions.
Correct Answer: B — Technical
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Q. Which of the following words best replaces 'ameliorate' in the context of the passage? (2022)
A.
Worsen
B.
Improve
C.
Neglect
D.
Complicate
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Solution
'Ameliorate' means to improve, making option 1 the best replacement in the context of the passage.
Correct Answer: B — Improve
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Q. Which of the following words best replaces 'ubiquitous' in the context of the passage?
A.
Rare
B.
Common
C.
Obsolete
D.
Unique
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Solution
'Ubiquitous' means present everywhere, which aligns with 'common', making option 1 the best replacement.
Correct Answer: B — Common
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Q. Which of the following words does not belong in the context of emotions?
A.
Joy
B.
Anger
C.
Fear
D.
Logic
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Solution
Logic is a rational process and does not pertain to emotions, making it the odd one out.
Correct Answer: D — Logic
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Q. Which of the following words does not belong in the context of literature?
A.
Protagonist
B.
Antagonist
C.
Narrative
D.
Algorithm
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Solution
The word 'Algorithm' is related to computer science and mathematics, while the other three terms are directly related to literature.
Correct Answer: D — Algorithm
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Q. Which of the following words does not belong in the group based on their meanings?
A.
Eloquent
B.
Articulate
C.
Verbose
D.
Inarticulate
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Solution
Inarticulate is the odd one out as it means unable to express oneself clearly, while the others relate to effective communication.
Correct Answer: D — Inarticulate
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Q. Which of the following words from the passage is closest in meaning to 'perpetuate'?
A.
End
B.
Continue
C.
Diminish
D.
Challenge
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Solution
In the context of the passage, 'perpetuate' means to continue, as it refers to the ongoing nature of inequalities.
Correct Answer: B — Continue
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Q. Which of the following words is a verb? (2023)
A.
Joy
B.
Run
C.
Beautiful
D.
Happiness
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Solution
'Run' is the only verb among the options.
Correct Answer: B — Run
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