Q1. The United Nations Environment Programme (UNEP) is headquartered in:
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Answer: D. Nairobi
UNEP is headquartered in Nairobi, Kenya.
International Organisations · hard
Q2. A train moving at 30 m/s is brought to rest by uniform retardation in 10 s. The distance covered while stopping is:
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Answer: B. 150 m
Distance = average velocity × time = (30 + 0)/2 × 10 = 150 m.
Physics - Motion · hard
Q3. Who chaired the States Reorganisation Commission, on whose report states such as MP were reorganised in 1956?
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Answer: A. Fazl Ali
The States Reorganisation Commission (1953-55) was chaired by Justice Fazl Ali, with K. M. Panikkar and H. N. Kunzru as members.
Modern History · hard
Q4. The Shipki La pass, through which the Sutlej enters India, is located in which state?
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Answer: D. Himachal Pradesh
Shipki La in Kinnaur, Himachal Pradesh, is where the Sutlej enters India from Tibet. It has been used as a trade route with Tibet.
Geography · hard
Q5. A wire of resistance 10 Ω is stretched to double its length (volume constant). Its new resistance is:
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Answer: A. 40 Ω
R ∝ L/A; L doubles and A halves, so R becomes 4 × 10 = 40 Ω.
Physics - Electricity · hard
Q6. Which Constitutional Amendment removed the Right to Property from the list of Fundamental Rights?
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Answer: D. 44th Amendment
The 44th Amendment Act, 1978 removed the Right to Property from Fundamental Rights and made it a legal right under Article 300A.
Indian Polity · hard
Q7. Who showed that the properties of elements depend on atomic number, forming the basis of the modern periodic law?
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Answer: C. Henry Moseley
Henry Moseley showed that atomic number is the basis for arranging elements. Mendeleev's table used atomic mass, Newlands proposed the Law of Octaves and Döbereiner the triads.
General Science · hard
Q8. Who developed the first vaccine, against smallpox?
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Answer: A. Edward Jenner
Edward Jenner developed the smallpox vaccine in 1796 using cowpox.
Biology - Diseases · hard
Q9. 'Mango showers' are pre-monsoon showers common in which region?
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Answer: D. Kerala and Karnataka
Mango showers fall at the end of summer on the Kerala and Karnataka coasts. West Bengal's pre-monsoon storms are called Kalbaisakhi.
Geography · hard
Q10. The Ghadar Party was founded in 1913 in which city?
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Answer: C. San Francisco
The Ghadar Party was founded in San Francisco in 1913 by Lala Har Dayal, Sohan Singh Bhakna and others.
History · hard
Q11. Which sphincter regulates the passage of food from the stomach into the duodenum?
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Answer: A. Pyloric sphincter
The pyloric sphincter at the stomach's exit controls the release of food into the duodenum.
Biology - Digestive System · hard
Q12. Which type of computer memory loses its contents when power is switched off?
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Answer: A. RAM
RAM is volatile memory. ROM, hard disks and flash memory are non-volatile and keep data without power.
Science and Technology · hard
Q13. The First Five-Year Plan of India began in:
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Answer: C. 1951
The First Five-Year Plan ran from 1951 to 1956.
Economy · hard
Q14. Tooth enamel starts to corrode when the pH in the mouth falls below about:
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Answer: D. 5.5
Enamel (calcium hydroxyapatite) begins to corrode when mouth pH drops below 5.5.
Chemistry - Acids, Bases & Salts · hard
Q15. 'Akbarnama', the official chronicle of Akbar's reign, was written by:
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Answer: B. Abul Fazl
'Akbarnama' was written by Abul Fazl, a court historian and one of the navaratnas of Akbar.
Books & Authors · hard
Q16. Heating a sulphide ore strongly in the presence of excess air is called:
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Answer: D. Roasting
Roasting converts sulphide ores to oxides by heating in excess air; calcination is for carbonates.
Chemistry - Metals & Non-metals · hard
Q17. Vegetable oils are converted to vanaspati ghee by adding hydrogen in the presence of which catalyst?
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Answer: A. Nickel
Hydrogenation of vegetable oils is carried out using a nickel catalyst.
Chemistry - Carbon Compounds · hard
Q18. In which year was the Battle of Talikota fought, leading to the decline of Vijayanagara?
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Answer: C. 1565
The Battle of Talikota was fought in 1565, when the Deccan Sultanates defeated Vijayanagara.
Medieval History · hard
Q19. A nutcracker is a lever in which the:
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Answer: C. Load is between the fulcrum and the effort
In a nutcracker (second-class lever), the load lies between fulcrum and effort.
Physics - Simple Machines · hard
Q20. Typhoid is caused by the bacterium:
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Answer: C. Salmonella typhi
Typhoid fever is caused by Salmonella typhi.
Biology - Diseases · hard
Q21. The Tarapore Committee is associated with:
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Answer: B. Capital account convertibility
The Tarapore Committee (1997, and again in 2006) set out a roadmap for full capital account convertibility of the rupee. It was chaired by S. S. Tarapore.
Economy · hard
Q22. Approximately what percentage of nitrogen by mass is present in urea, CO(NH2)2? (C = 12, O = 16, N = 14, H = 1)
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Answer: D. 46.7%
N = 28 of 60, i.e. 28/60 x 100 = about 46.7%.
Chemistry - Everyday Chemistry · hard
Q23. In electrolytic refining of copper, the impure copper is made the:
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Answer: B. Anode
The impure metal is the anode; pure copper deposits on the cathode.
Chemistry - Metals & Non-metals · hard
Q24. The general formula of alkenes is:
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Answer: D. CnH2n
Alkenes follow the general formula CnH2n (e.g. ethene, C2H4).
Chemistry - Carbon Compounds · hard
Q25. Fog is a colloid in which:
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Answer: C. A liquid is dispersed in a gas
Fog is an aerosol: liquid water droplets (dispersed phase) in air (dispersing medium).