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Prelims

UPSC Prelims Questions

Practice UPSC Prelims MCQs by subject and year. Free questions with explanations for focused revision.

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  2. /Prelims Questions
Q.2719·Miscellaneous·2023·Easy

Consider the following clues about a State of India: 1. It is known as ‘land of red river and blue hills’. 2. It contains three of the six physiographic divisions of India. 3. It covers about 2·39 percent of total areas of the country. Identify the State on the basis of the given clues.

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Q.2720·Miscellaneous·2023·Easy

Which one of the following is not an oxidation reaction?

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Q.2721·Miscellaneous·2023·Easy

Rani told her friends that last year she did boating in four different lakes, namely, Loktak, Barapani, Kolleru and Pulicat. Which of the following States did she visit?

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Q.2722·Miscellaneous·2023·Easy

Consider the following statements regarding burning of magnesium ribbon in air: 1. White powder of MgO is formed. 2. It is an example of combustion reaction. 3. Heat and light are produced. Which of the statements given above are correct?

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Q.2723·Miscellaneous·2023·Easy

According to the Census 2011, which of the following statements is/are correct? 1. A person who can only read but cannot write, is not literate. 2. A person aged seven years and above, who can both read and write with understanding in any language is treated as literate. Select the correct answer using the code given below.

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Q.2724·Miscellaneous·2023·Easy

The Tropic of Cancer passes through how many coastal and landlocked States of India, respectively?

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Q.2725·Miscellaneous·2023·Easy

A sprinter feels cramps and pain in the thigh muscles after a run. This is due to accumulation of

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Q.2726·Miscellaneous·2023·Easy

A leaf was plucked from a plant on a sunny day and kept for 2 minutes in boiling water. It was subsequently immersed in boiling alcohol and treated with iodine solution. What will be the final colour of the leaf after the test?

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Q.2727·Miscellaneous·2023·Easy

The blood pressure of a normal human being is found to be 120/80 mmHg. These ‘numbers’ represent the blood pressure at

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Q.2728·Miscellaneous·2023·Easy

Which one of the following statements regarding bile secreted by liver is not correct?

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Q.2729·Miscellaneous·2023·Easy

A person burned a firecracker in front of a cliff and heard its echo 5 s after it burst. The distance of the cliff from the person, if the speed of the sound is 340 m/s, is close to

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Q.2730·Miscellaneous·2023·Easy

If the red blood cells (RBCs) of human blood are isolated and are diluted in normal saline (an isotonic solution to blood), what will happen to the RBCs?

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Q.2731·Miscellaneous·2023·Easy

A 100 W electric bulb is used for 10 hours a day. How many units of electrical energy are consumed by the bulb in 3 days? (1 unit = 1 kWh)

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Q.2732·Miscellaneous·2023·Easy

Consider the following statements about the microphone and the speaker of a mobile phone: 1. The microphone converts sound to a mechanical signal. 2. The microphone converts sound to an electrical signal. 3. The speaker converts a mechanical signal to sound. 4. The speaker converts an electrical signal to sound. Which of the statements given above are correct?

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Q.2733·Miscellaneous·2023·Easy

The area under the velocity-time graph for a particle moving in a straight line with uniform acceleration gives

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Q.2734·Miscellaneous·2023·Easy

The power of a lens of focal length 10 cm is

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Q.2735·Miscellaneous·2023·Easy

Let N be the least positive multiple of11 that leaves a remainder of 5 when divided by 6, 12, 15, 18. Which one of the following is correct?

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Q.2736·Miscellaneous·2023·Easy

Who among the following were awarded the Major Dhyan Chand Khel Ratna Award 2024? 1.Shri Gukesh D 2.Shri Harmanpreet Singh 3.Shri Praveen Kumar 4.Ms. Manu Bhaker Select the answer using the code given below:

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