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Q1. Which of the following statements with regard to Green Hydrogen is/are correct ?
1. It is decarbonized hydrogen obtained from natural gas reforming combined with carbon capture and storage (CCS).
2. It is produced using electrolysis of water with electricity generated by renewable energy.
3. National Green Hydrogen Mission of India aims for abatement of nearly 50 MMT of annual greenhouse gas emissions by 2030.
Select the answer using the code given below : UPSC Prelims 2026
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Q2. Which of the following statements with regard to the National Quantum Mission (NQM) is/are correct ?
1. It aims at developing intermediate-scale quantum computers with 50 – 1000 physical qubits.
2. Its implementation includes setting up of four Thematic Hubs (T-Hubs) in academic and national R&D institutes across India.
Select the answer using the code given below : UPSC Prelims 2026
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Q3. Which of the following statements with regard to India’s Deep Ocean Mission is/are correct ?
1. It was launched by the Ministry of Ports, Shipping and Waterways, Government of India.
2. Matsya-6000 has been designed to carry 3 people for deep sea exploration.
3. Samudrayaan is a project under this mission.
Select the answer using the code given below : UPSC Prelims 2026
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Q4. Consider the following pairs :
Plant — Description
I. Cassava — Woody shrub
II. Ginger — Herb with pseudostem
III. Malabar spinach — Herbaceous climber
IV. Mint — Annual shrub
V. Papaya — Woody shrub
How many of the above pairs are correctly matched? UPSC Prelims 2025
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Q5. In the context of electric vehicle batteries, consider the following elements :
I. Cobalt
II. Graphite
III. Lithium
IV. Nickel
How many of the above usually make up battery cathodes? UPSC Prelims 2025
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Q6. Consider the following substances :
I. Ethanol
II. Nitroglycerine
III. Urea Coal gasification technology can be used in the production of how many of them? UPSC Prelims 2025
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Q7. Consider the following statements :
Statement I : Some rare earth elements are used in the manufacture of flat television screens and computer monitors.
Statement II : Some rare earth elements have phosphorescent properties.
Which one of the following is correct in respect of the above statements? UPSC Prelims 2025
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Q8. Artificial way of causing rainfall to reduce air pollution makes use of UPSC Prelims 2025
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Q9. Consider the following plants :
1. Groundnut
2. Horse-gram
3. Soybean
How many of the above belong to the pea family ? UPSC Prelims 2024
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Q10. The organisms "Cicada, Froghopper and Pond skater" are : UPSC Prelims 2024
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Q11. Consider the following :
1.
2.
3.
4.
How many of the above are considered "Distributed Energy Resources" ? UPSC Prelims 2024
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Q12. With reference to radioisotope thermoelectric generators (RTGs), consider the following statements :
1.
2.
3.
Which of the statements given above are correct ? UPSC Prelims 2024
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Q13. Consider the following statements :
Statement-I: Giant stars live much longer than dwarf stars.
Statement-II: Compared to dwarf stars, giant stars have a greater rate of nuclear reactions.
Which one of the following is correct in respect of the above statements ? UPSC Prelims 2024
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Q14. In which of the following are hydrogels used ?
1.
2.
3.
Select the correct answer using the code given below : UPSC Prelims 2024
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Q15. Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles, powered by hydrogen ? UPSC Prelims 2024
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Q16. Recently, the term "pumped-storage hydropower" is actually and appropriately discussed in the context of which one of the following ? UPSC Prelims 2024