UPSC Prelims 2023 Question Paper & Analysis
Get the UPSC Prelims Previous Year Question (PYQ) Paper with subject-wise trends, difficulty analysis, and detailed model answers — including diagrams, flowcharts, and structured writing for GS.
Subject-wise MCQ Distribution
Environment & Ecology
16
Economy
16
Indian Polity
15
International Relations
10
Science & Technology
10
Art & Culture
8
Indian Geography
8
World Geography
4
Physical Geography
3
Medieval History
3
Modern History
3
Social Issues & Schemes
3
Ancient History
1
Difficulty Analysis
Type of questions
Key Insights
- Environment & Ecology, Economy, Indian Polity carried the highest weightage, together accounting for 47% of the paper.
- The paper strongly favoured statement-based questions — multi-statement and assertion-reasoning questions together made up 72% of the paper, making careful reading and elimination especially important.
- The paper was largely easy to moderate in difficulty, with 65% of questions falling in the easy or medium range and only 35% classified as hard.
- Questions were spread across 13 subject areas, making broad syllabus coverage important rather than relying on a few traditionally dominant subjects.
- The question format demanded more than direct recall, with only 28% of questions being direct, while most required evaluating multiple statements or reasoning through assertions.
PYQs with Detailed Answers
Ancient History (1)Art & Culture (8)Economy (16)Environment & Ecology (16)Geography (15)Indian Polity (15)International Relations (10)Medieval History (3)Modern History (3)Science & Technology (10)Social Issues & Schemes (3)
- View Answer for: Which one of the following countries has its own Satellite Navigation System?
Which one of the following countries has its own Satellite Navigation System?
- View Answer for: 'Wolbachia method' is sometimes talked about with reference to which one of the following?
'Wolbachia method' is sometimes talked about with reference to which one of the following?
- View Answer for: Aerial metagenomics' best refers to which one of the following situations?
Aerial metagenomics' best refers to which one of the following situations?
- View Answer for: Consider the following pairs : Objects in space: Description Cepheids: Giant clouds of dust and gas in space Nebulae: Stars which brighten and dim periodically Pulsars: Neutron stars that are formed when massive stars run out of fuel and collapseHow many of the above pairs are correctly matched?
Consider the following pairs : Objects in space: Description
- Cepheids: Giant clouds of dust and gas in space
- Nebulae: Stars which brighten and dim periodically
- Pulsars: Neutron stars that are formed when massive stars run out of fuel and collapse
How many of the above pairs are correctly matched?
- View Answer for: Consider the following statements: Some microorganisms can grow in environments with temperature above the boiling point of water. Some microorganisms can grow in environments with temperature below the freezing point of water. Some microorganisms can grow in highly acidic environment with a pH below 3.How many of the above statements are correct?
Consider the following statements:
- Some microorganisms can grow in environments with temperature above the boiling point of water.
- Some microorganisms can grow in environments with temperature below the freezing point of water.
- Some microorganisms can grow in highly acidic environment with a pH below 3.
How many of the above statements are correct?
- View Answer for: 'Microsatellite DNA' is used in the case of which one of the following?
'Microsatellite DNA' is used in the case of which one of the following?
- View Answer for: Consider the following actions: Detection of car crash/collision which results in the deployment of airbags almost instantaneously Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off of the hard drive Detection of the tilt of the smartphone which results in the rotation of display between portrait and landscape modeIn how many of the above actions is the function of accelerometer required?
Consider the following actions:
- Detection of car crash/collision which results in the deployment of airbags almost instantaneously
- Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off of the hard drive
- Detection of the tilt of the smartphone which results in the rotation of display between portrait and landscape mode
In how many of the above actions is the function of accelerometer required?
- View Answer for: Consider the following statements: Some mushrooms have medicinal properties. Some mushrooms have psychoactive properties. Some mushrooms have insecticidal properties. Some mushrooms have bioluminescent properties.How many of the above statements are correct?
Consider the following statements:
- Some mushrooms have medicinal properties.
- Some mushrooms have psychoactive properties.
- Some mushrooms have insecticidal properties.
- Some mushrooms have bioluminescent properties.
How many of the above statements are correct?
- View Answer for: Consider the following statements: Ballistic missiles are jet-propelled at subsonic speeds throughout their flights, while cruise missiles are rocket-powered only in the initial phase of flight. Agni-V is a medium-range supersonic cruise missile, while BrahMos is a solid-fuelled intercontinental ballistic missile.Which of the statements given above is/are correct?
Consider the following statements:
- Ballistic missiles are jet-propelled at subsonic speeds throughout their flights, while cruise missiles are rocket-powered only in the initial phase of flight.
- Agni-V is a medium-range supersonic cruise missile, while BrahMos is a solid-fuelled intercontinental ballistic missile.
Which of the statements given above is/are correct?
- View Answer for: Consider the following statements: Carbon fibres are used in the manufacture of components used in automobiles and aircrafts. Carbon fibres once used cannot be recycled.Which of the statements given above is/are correct?
Consider the following statements:
- Carbon fibres are used in the manufacture of components used in automobiles and aircrafts.
- Carbon fibres once used cannot be recycled.
Which of the statements given above is/are correct?
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Frequently Asked Questions
Are these the complete UPSC Prelims 2023 questions?
Yes. This page covers the complete UPSC Prelims 2023 question paper, with questions organised by subject for easier practice and review.
Can I practise these questions before seeing the answers?
Yes. Each question is accompanied by a detailed model answer and explanation, helping you understand the correct answer and the reasoning behind it.
Are these answers based on the official UPSC answer key?
Yes. The model answers are prepared with reference to the official UPSC answer key, along with detailed explanations to help you understand the reasoning behind each answer.
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