70th BPSC Prelims Re-exam 2025 Question Paper
Explore the complete solved question paper for 70th BPSC Prelims Re-exam 2025 featuring 150 solved questions with bilingual (English & Hindi) explanations, official answer key, and subject weightage breakdown.
Chitrakoot temple is located in which State of India?
Detailed Explanation:
Chitrakoot is located on the Madhya Pradesh-Uttar Pradesh border, with the main temple complexes and Kamadgiri Hill situated in Madhya Pradesh.
Sacred sites include Ram Ghat on the Mandakini River, Kamadgiri Temple, and Gupt Godavari Caves, all linked to Lord Rama's exile (vanavasa) period described in the Ramayana.
How many triangles are there in the following figure?
Detailed Explanation:
Counting triangles systematically:
Smallest triangles: 6 individual regions formed by intersecting lines inside the main triangle.
Medium triangles (2 small combined): 3 triangles formed by merging two adjacent smallest triangles.
Larger triangles (3 small combined): 2 triangles formed by merging three smallest triangles.
Outermost triangle: 1 complete boundary triangle.
Total count: 6 + 3 + 2 + 1 = 12 triangles.
What is Infant Mortality rate?
Detailed Explanation:
Infant Mortality Rate (IMR) measures the number of deaths of children before the age of 1 year per 1,000 live births in a given year.
Option 4 correctly defines IMR as the proportion of children dying before age 1 per 1,000 live births, while options 1, 2, and 3 incorrectly refer to ages 3, 4, and 2 years respectively.
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The conductivity of a strong electrolyte
Detailed Explanation:
Conductivity (specific conductivity) measures the ability of a unit volume of solution to conduct electricity, depending on number of ions per unit volume.
On dilution, total ions remain constant but volume increases, so ion concentration per unit volume decreases, causing conductivity to decrease. (Note: Molar conductivity increases with dilution, but the question asks about conductivity.)
Which of the following Constitutional Amendment in India has decided the maximum strength of the Council of Minister with Chief Minister in a State ?
Detailed Explanation:
The 91st Constitutional Amendment Act, 2003 introduced Article 164(1A), which limits the size of the Council of Ministers in a state to 15% of the total strength of the State Legislative Assembly, with a minimum of 12 ministers.
The Chief Minister is included in this count, and this provision applies to both Union and State governments to curb defections and ensure administrative efficiency.
Which longitude separates Canada and Alaska?
Detailed Explanation:
The 141° W longitude forms the international boundary between Canada (Yukon Territory) and Alaska (USA).
This boundary was established by the Anglo-Russian Convention of 1825 between Britain and Russia, and continued after the United States purchased Alaska in 1867.
The primary function of the Finance Commission in India is to
Detailed Explanation:
The Finance Commission is a constitutional body under Article 280 that recommends the distribution of net proceeds of taxes between the Centre and the States.
It is appointed every five years by the President and also recommends grants-in-aid to states and measures to augment the Consolidated Fund of a State.
Which of the following is not an electrophile?
Detailed Explanation:
Electrophiles are electron-deficient species that accept electron pairs, typically carrying a positive charge or having an incomplete octet.
Na⁺ (sodium ion) has a stable noble-gas configuration (1s²2s²2p⁶) with no empty orbitals available to accept electrons, making it a spectator ion rather than an electrophile.
BF₃ (boron trifluoride) has an incomplete octet on boron (only 6 electrons), allowing it to act as a Lewis acid and electrophile.
H⁺ (proton) has no electrons and readily accepts electron pairs, making it a strong electrophile.
Match List - I of leaders with List- I of their territory and select answer from the code given below:
| List – I | List - II |
| a. Kunwar Singh | i. Faizabad |
| b. Hazrat Mahal | ii. Bareilly |
| c. Khan Bahadur | iii. Jagdishpur |
| d. Maulvi Ahmadullah | iv. Lucknow |
Code:
Detailed Explanation:
Kunwar Singh led the revolt from Jagdishpur (Bihar), establishing a strong peasant base against the British.
Hazrat Mahal, the Begum of Awadh, led the rebellion from Lucknow after her son was declared Nawab.
Khan Bahadur Khan, the Nawab of Bareilly, commanded the revolt in Bareilly (Rohilkhand region).
Maulvi Ahmadullah Shah, a religious leader, led the uprising in Faizabad and surrounding areas.
Correct matching: a-iii, b-iv, c-ii, d-i.
Catalyst used in hydrogenation of vegetable oil into vanaspati ghee is
Detailed Explanation:
Nickel (Ni) is the industrial catalyst used in the hydrogenation of vegetable oils to produce vanaspati ghee.
The process converts unsaturated fats (liquid oils) into saturated fats (solid ghee) by adding hydrogen in the presence of finely divided nickel at 140–225°C.
Actual site of dark reaction in photosynthesis inside cytoplast is
Detailed Explanation:
Dark reaction (Calvin cycle) occurs in the stroma of the chloroplast, the fluid-filled region surrounding the grana.
Granum (stacks of thylakoid membranes) and grana lamella (connections between grana) are sites of light reactions, not dark reactions.
The person who has been President of India, Ambassador to USA, China,Turkey and Thailand alongwith vice chancellor to Jawahar Lal University. He is
Detailed Explanation:
K. R. Narayanan (10th President of India, 1997–2002) is the only person who served as Ambassador to USA, China, Turkey, and Thailand, and as Vice-Chancellor of Jawaharlal Nehru University (JNU).
Dr. S. Radhakrishnan (2nd President) was a philosopher and Vice President but not an ambassador to these countries or JNU VC. Dr. Shankar Dayal Sharma (9th President) and R. Venkataraman (8th President) did not hold these diplomatic posts or the JNU Vice-Chancellorship.
In which district of Bihar, Maize production is maximum?
Detailed Explanation:
Muzaffarpur is the leading district in Bihar for maize production, accounting for the highest output in the state based on agricultural statistics.
The district benefits from favorable agro-climatic conditions and extensive cultivation area dedicated to maize compared to East Champaran, Siwan, and Saran districts.
If a triangle represents Men, a rectangle represents Businessman and the circle represents Millionaire, then which number represents Men that are both Businessman and Millionaire?
Detailed Explanation:
Venn Diagram Intersection: The region where all three shapes (triangle, rectangle, circle) overlap represents men who are both businessmen and millionaires.
Answer: From the diagram, 10 is the only number present in the common area of all three shapes.
A nail is nailed into the trunk of a tree at a point 1 m from the soil level. After 2 years the nail will
Detailed Explanation:
Trees grow in height from apical meristems (shoot and root tips), not by elongating the trunk itself.
The nail remains at 1 m height because secondary growth (cambium activity) only increases girth, not vertical position of existing trunk sections.
The 60.2 percent share in GSDP of Bihar in 2019-20 was of
Detailed Explanation:
Bihar's GSDP structure (2019-20): The service sector contributed 60.2% share to Bihar's GSDP, making it the largest contributor.
Agriculture sector contributed approximately 20-25%, while industrial/manufacturing sector contributed around 15-20%, reflecting Bihar's service-driven economy.
Which pair of rivers cuts the Tropic of Cancer twice over Chhota Nagpur Plateau ?
Detailed Explanation:
The Tropic of Cancer (23°30'N) passes through the Chhota Nagpur Plateau in Jharkhand.
The North Koel River originates on the Ranchi Plateau, flows northward through Palamu, crosses the Tropic of Cancer twice due to its meandering course, and joins the Son River.
The Suwarnarekha River originates near Piska (west of Ranchi), flows eastward through Jharkhand, West Bengal, and Odisha, crosses the Tropic of Cancer twice over the plateau, and drains into the Bay of Bengal.
The Damodar and South Koel do not exhibit this double-crossing pattern over the plateau.
Which of the following Acts converted Unicameral Legislature of Bihar into Bicameral : Bihar Legislative Assembly and Bihar Legislative Council?
Detailed Explanation:
Government of India Act 1919 (Montagu-Chelmsford Reforms) converted Bihar's unicameral legislature into a bicameral system with the Bihar Legislative Assembly (lower house) and Bihar Legislative Council (upper house).
The Government of India Act 1909 (Morley-Minto Reforms) only expanded legislative councils but did not create bicameral provincial legislatures, while the Government of India Act 1935 retained the existing bicameral structure established in 1919.
Who was the first Muslim President of Indian National Congress ?
Detailed Explanation:
Badruddin Tyabji was the first Muslim president of the Indian National Congress, presiding over the third session in Madras (1887).
Hasrat Mohani never served as INC president; Maulana Azad became president much later (1940–1946).
Which country hosted the COP28 climate summit in 2023?
Detailed Explanation:
COP28 (28th UN Climate Change Conference) was hosted by the United Arab Emirates from November 30 to December 13, 2023 at Expo City Dubai.
This was the first time a Gulf nation hosted the annual UN climate summit, with Sultan Al Jaber serving as COP28 President.
70th BPSC Prelims Re-exam 2025 Questions Paper - Subject-wise Question Distribution
General Science
28 Qs (18.7%)Modern History
24 Qs (16%)Current Affairs
20 Qs (13.3%)Indian Polity
16 Qs (10.7%)Bihar Special
13 Qs (8.7%)Indian Geography
12 Qs (8%)Indian Economy
10 Qs (6.7%)General Mental Ability
8 Qs (5.3%)World Geography
8 Qs (5.3%)Ancient History
5 Qs (3.3%)Medieval History
4 Qs (2.7%)Environment & Ecology
1 Qs (0.7%)Indian Art & Culture
1 Qs (0.7%)70th BPSC Prelims Re-exam 2025 Question Paper - FAQs & Analysis
Q1 How many total questions were asked in 70th BPSC Prelims Re-exam 2025 2024?
Q2 What is the subject-wise question breakdown for 70th BPSC Prelims Re-exam 2025 2024?
- General Science: 28 questions (18.7%)
- Modern History: 24 questions (16%)
- Current Affairs: 20 questions (13.3%)
- Indian Polity: 16 questions (10.7%)
- Bihar Special: 13 questions (8.7%)
- Indian Geography: 12 questions (8%)
- Indian Economy: 10 questions (6.7%)
- General Mental Ability: 8 questions (5.3%)
- World Geography: 8 questions (5.3%)
- Ancient History: 5 questions (3.3%)
- Medieval History: 4 questions (2.7%)
- Environment & Ecology: 1 questions (0.7%)
- Indian Art & Culture: 1 questions (0.7%)