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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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Q.2089·Miscellaneous·2023·Easy

Which one among the following is the northernmost geographical location ?

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Q.2090·Miscellaneous·2023·Easy

Consider the following statements : 1. Distance between the longitudes becomes zero on North Pole and South Pole. 2. Distance between the longitudes is maximum on the Equator. 3. Number of longitudes is more than number of latitudes. Which of the statements given above is/are correct ?

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Q.2091·Miscellaneous·2023·Easy

Which one of the following is not a main greenhouse gas ?

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Q.2092·Miscellaneous·2023·Easy

A rectangle ABCD is kept in front of a concave mirror of focal length f with its corners A and B being, respectively, at distances 2f and 3f from the mirror with AB along the principal axis as shown in the figure. It forms an image A'B'C'D' in front of the mirror. What is the ratio of B'C' to A'D' ?

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Q.2093·Miscellaneous·2023·Easy

If log a, a^x and log^x are in GP, then what is x equal to?

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Q.2094·Miscellaneous·2023·Easy

Who among the following composed the ‘Prayag Prashasti’ of Samudragupta ?

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Q.2095·Miscellaneous·2023·Easy

Which one of the following statements is not true for a flute, a musical instrument ?

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Q.2096·Miscellaneous·2023·Easy

In this question given below are some idioms/phrases followed by four alternative meanings for each. Choose the most appropriate answer from among the options (a), (b), (c) or (d). The lion’s share  

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Q.2097·Miscellaneous·2023·Easy

Which one of the following apparatus is used for separating benzene and water mixture ?

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Q.2098·Miscellaneous·2023·Easy

Which of the hydrocarbons are arranged as per the increasing order of their boiling points ?

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Q.2099·Miscellaneous·2023·Easy

An iron nail dipped in copper sulphate solution turns brown. This is due to which one of the following types of reactions ?

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Q.2100·Miscellaneous·2023·Easy

Browning of the chopped apple can be minimized by :

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Q.2101·Miscellaneous·2023·Easy

Among the following, which is not the correct method for keeping the curd ?

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Q.2102·Miscellaneous·2023·Easy

One advantage of sexual reproduction over asexual reproduction is that it helps species to survive over long evolutionary time. This is because sexual reproduction produces :

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Q.2103·Miscellaneous·2023·Easy

Which one of the following structures or components is not always present in living cells ?

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Q.2104·Miscellaneous·2023·Easy

Toothpaste prevents tooth decay by :

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Q.2105·Miscellaneous·2023·Easy

Who among the following is not a recipient of Nobel Prize in Chemistry in 2022 ?

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Q.2106·Miscellaneous·2023·Easy

Consider the following statements regarding cell wall composition : 1. Bacterial cell wall is made of peptidoglycan. 2. Fungal cell wall is made of cellulose. 3. Animals lack cell wall and have extracellular matrix made up of sugar and proteins. Select the correct answer using the code given below :

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