139 previous year UPSC Prelims questions on the UPSC 2003 Prelims. Choose an option to see the answer and explanation.
Explanations state facts as of the year each question was asked; words like “recently” refer to that year.
Showing 101–110 of 139 questions
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UPSC 2003Polity · Miscellaneous
Q101. As per Indian Protocol, who among the following ranks highest in the order of precedence?
Explanation
Option (c) is correct: The Governor within their respective states is the fourth ranked officer of the government of India just below the Prime Minister and above former Presidents. Governors rank eighth outside their states. The correct sequence in the descending order of precedence in the warrant of precedence is:
1. President of India
2. Vice President of India
3. Prime Minister of India
4. Governors of States within their respective States
5. Former President 5A. Deputy Prime Minister
6. Speaker of Lok Sabha, and Chief Justice of India
9. Judges of the Supreme Court
10. Deputy Chairman of RS
11. Attorney General of India
12. Member of Parliament
UPSC 2003Science and Technology · Chemistry: Organic Chemistry
Q102. The purpose of adding sodium sulphate and sodium silicate to the detergent in a washing powder is: 1. to keep the washing powder dry. 2. to maintain the alkalinity of the powder. Which of these statements is/are correct?
Explanation
Detergents are cleaning agents used to remove dirt, grease, and stains from surfaces and fabrics. Key additives like sodium sulphate prevent clumping by keeping the powder dry, while sodium silicate maintains alkalinity, enhancing the cleaning efficiency.
Statement 1 is correct: Sodium sulphate is added to keep the washing powder dry by preventing it from absorbing moisture.
Statement 2 is correct: Sodium silicate is used to maintain the alkalinity of the detergent, which enhances the cleaning action by breaking down grease and dirt.
UPSC 2003Science and Technology · Chemistry: Environmental Chemistry
Q103. Which one of the following is produced during the formation of photochemical smog?
Explanation
Photochemical smog is a type of air pollution that occurs when sunlight reacts with pollutants like nitrogen oxides and volatile organic compounds (VOCs), including hydrocarbons. The reaction leads to the formation of ozone, which is a key component of photochemical smog. Key Components of Photochemical Smog are:
Nitrogen Oxides - Released from vehicles, industrial emissions, and power plants. They react with sunlight to form ozone. Hydrocarbons: Organic compounds that also contribute to ozone formation when exposed to sunlight. Ozone: The primary harmful product of photochemical smog, which can cause respiratory problems and damage to vegetation. Methane is a potent greenhouse gas, but it does not directly form photochemical smog. While it can contribute indirectly to smog formation by reacting with other pollutants, it is not a primary component like ozone, hydrocarbons, or nitrogen oxides.
UPSC 2003Indian Economy · Important Concepts in Economy
Q104. Which one among the following States has the highest female literacy rate as per the Census 2001?
Explanation
The female literacy rate is the percentage of women aged 7 years and above who can read and write with under-standing in any language. It is a key indicator of the educational and social development of a region or country. As per Census 2001, the overall female literacy rate in India was 54.16%, while the male literacy rate was 75.85%. As per Census 2011, the female literacy rate in India rose to 65.46%, and Chhattisgarh’s female literacy rate increased to 60.59%.
Option (a) is correct:
As per the Census 2001, conducted by the Office of the Registrar General and Census Commissioner, India, Chhattisgarh had the highest female literacy rate among the given options. Here are the female literacy rates for the states mentioned:
Q105. Consider the following statements: 1. The common blue green algae, Spirogyra and Ulothrix, are found in both freshwater ponds and oceans. 2. The Chameleon can look ahead with one eye, and at the same time look behind with another. Which of these statements is/are correct?
Explanation
Statement 1 is correct: Spirogyra and Ulothrix are types of blue green algae that can be found in both freshwater and marine environments. They are typically found in ponds, rivers, and even oceans in some cases. Spirogyra is known for its spiral-shaped chloroplasts and forms slimy green filaments/ mats on the water surface, especially when nutrients like nitrogen and phosphorus are abundant while Ulothrix is characterized by its simple, unbranched filaments and typically grows in both freshwater ponds and coastal regions. These algae play an important role in the aquatic food chain.
Statement 2 is correct: Chameleons have a unique ability to move their eyes independently of each other. They can focus one eye on an object in front while the other eye looks in a different direction, even behind them. This independent eye movement enables them to have a 360-degree view of their surroundings, aiding in predator detection and prey surveillance.
UPSC 2003Science and Technology · Biology: Botany
Q106. Assertion (A): Unsaturated fats are more reactive compared with the saturated fats. Reason (R): Unsaturated fats have only single bonds in their structure.
Explanation
Saturated fats are typically solid at room temperature and are found in animal products like butter, lard, and fatty cuts of meat, as well as some plant oils like coconut and palm oil. They are composed of fatty acids with no double bonds between carbon atoms, making them less reactive. Unsaturated fats are liquid at room temperature and are mainly found in plant-based oils (such as olive, sunflower, and canola oil) and fish. They contain one or more double bonds between carbon atoms which introduce "kinks" in the structure making them more reactive and beneficial for heart health when consumed in moderation. Assertion (A) is true: Unsaturated fats have at least one double bond between carbon atoms, making them more reactive. These double bonds are sites where chemical reactions can occur more easily compared to the single bonds in saturated fats. Reason (R) is false: Unsaturated fats contain at least one double bond in their carbon chain, not only single bonds. Saturated fats have only single bonds.
UPSC 2003Science and Technology · Biology: Botany
Q107. Consider the following statements: 1. Molasses is a by-product of the sugar production process. 2. Bagasse obtained in the sugar mills is used as a fuel in the boilers to generate steam for the sugar factories. 3. Sugar can only be produced from sugarcane as the raw material. Which of these statements are correct?
Explanation
Statement 1 is correct: Molasses is a thick, dark syrup that remains after the extraction of sugar from sugarcane or sugar beets. It is a common by-product in the sugar industry. It serves as a feedstock for producing synthetic chemical fertilizers and ethanol.
Statement 2 is correct: Bagasse, the fibrous residue left after extracting juice from sugarcane, is commonly used as a biofuel in the sugar industry to generate steam and electricity, making the process more energy-efficient.
Statement 3 is incorrect: Sugar is produced from various raw materials including sugarcane and sugar beets. Other sources for sugar production include sorghum and palm sap.
UPSC 2003General Knowledge · Contemporary Events: India
Q108. With reference to the Indian economy, consider the following activities: 1. Agriculture, Forestry and Fishing 2. Manufacturing 3. Trade, Hotels, Transport and Communication 4. Financing, Insurance, Real Estate and Business services The decreasing order of the contribution of these sectors to the Gross Domestic Product (GDP) at factor cost at constant prices (2000-01) is:
Explanation
In the fiscal year 2000-01, India’s GDP at factor cost (constant prices) was approximately 11,93,922 crore. The sectoral contributions were Agriculture, Forestry, and Fishing (24.7%), Trade, Hotels, Transport, and Communication (18.9%), Manufacturing (15.7%), and Financing, Insurance, Real Estate, and Business Services (13.1%), reflecting the dominance of agriculture and services in the economy during that period.
Additional insight:
According to the Provisional Estimates of Annual GDP for 2023-24 released by the Ministry of Statistics and Programme Implementation in May 2024, India’s Gross Value Added (GVA) at constant prices was primarily driven by the services sector, which contributed 52.1% to the total GVA. The industrial sector accounted for 29.6%, with manufacturing alone contributing 17.4%. Agriculture, forestry, and fishing contributed 18.3%.
UPSC 2003General Knowledge · Contemporary Events: India
Q109. Consider the following: Assertion (A): During the year 2001-02, the value of India’s total exports declined, registering a negative growth of 2.17 %. Reason (R): During the year 2001-02, negative growth in exports was witnessed in respect of iron and steel, coffee, textiles and marine products. Which of the following is correct with respect to the above statements?
Explanation
Assertion (A) is False: India’s exports during 2001-02 experienced a marginal growth rather than a decline. Specifically, during the period of April-November 2001-02, exports recorded a meager growth of 0.64%, amounting to $32.57 billion, compared to $32.36 billion in the corresponding period of the previous year. Reason (R) is true: The global economic slowdown, particularly the recession in the United States, adversely affected India’s export sectors, including textiles and other commodities. For Example:
In the period April-September 2001-02, textile exports were valued at $534.64 million, down from $623.71 million in the same period the previous year.
UPSC 2003General Knowledge · Contemporary Events: India
Q110. Among the following commodities imported by India during the year 2000-01, which one was the highest in terms of rupee value?
Explanation
During 2000-01, India’s major imports included petroleum products, pearls and precious stones, edible oils, chemicals, and fertilizers. Pearls and precious stones were the largest import category, valued at 25,000-30,000 crore ($6.5 billion), followed by chemicals (9,000-10,000 crore) and edible oils (9,000 crore/$2 billion). Fertilizer imports were lower, at less than 7,000 crore.
Additional insight:
Economic Survey 2023-24, the import values in billion USD for the specified commodities are:
How many previous year UPSC questions are there on all subjects?
This page covers 139 previous year UPSC Prelims GS Paper-I questions on the UPSC 2003 Prelims, asked from 1995 to 2025. Each has the correct answer and an explanation.
How should I use previous year UPSC questions for Prelims?
Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.
Which years are covered for all subjects?
Questions on the UPSC 2003 Prelims are available for 31 years, from 1995 to 2025. Use the Year filter to practise a single paper.