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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.7885·Miscellaneous·2017·Easy

The creation of the institution of Lokpal was first recommended by

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Q.7886·Miscellaneous·2017·Easy

Which one of the following is a cause of acid rains?

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Q.7887·Miscellaneous·2017·Easy

The desirable range of pH for drinking water is

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Q.7888·Miscellaneous·2017·Easy

Consider the following reaction : CH₄ + 2O₂ → CO₂ + 2H₂O Which of the following about the reaction given above is/are correct? 1.Carbon is oxidized. 2.Hydrogen is oxidized. 3.Hydrogen is reduced. 4.Carbon is reduced. Select the correct answer using the code given below :

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Q.7889·Miscellaneous·2017·Easy

Sunrise in eastern Arunachal Pradesh would be about how many hours before the sunrise in western Gujarat?

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Q.7890·Miscellaneous·2017·Easy

Consider the following States of India in terms of percentage of forest area in relation to the total area of the State : 1.Karnataka 2.Odisha 3.Kerala 4.Andhra Pradesh Which one of the following is the correct descending order?

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Q.7891·Miscellaneous·2017·Easy

Which one of the following States in India has the longest coastline?

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Q.7892·Miscellaneous·2017·Easy

Which one of the following States in India has the largest area under forest cover?

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Q.7893·Miscellaneous·2017·Easy

Which one of the following is not an igneous rock?

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Q.7894·Miscellaneous·2017·Easy

Which one of the following pairs of rivers and tributaries is not correctly matched?

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Q.7895·Miscellaneous·2017·Easy

Consider the following characteristics of a tropical cyclone : 1.A warm sea temperature of > 26°C 2.High relative humidity of atmosphere at a height of > 700 m 3.Atmospheric instability The above mentioned characteristics are associated with which one of the following cycles of its development?

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Q.7896·Miscellaneous·2017·Easy

In the Mesopotamian records, which one of the following terms was used for the Indus Valley (Harappans)?

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Q.7897·Miscellaneous·2017·Easy

What is the probability that at least two persons out of a group of three persons were born in the same month (disregard year)?

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Q.7898·Miscellaneous·2017·Easy

If f(x) = (4x + x^4)/(1 + 4x^3) and g(x) = ln((1 + x)/(1 - x)), then what is the value of f o g((e - 1)/(e + 1)) equal to?

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Q.7899·Miscellaneous·2017·Easy

The value of the determinant | 1 - α α - α^2 α^2 | | 1 - β β - β^2 β^2 | | 1 - γ γ - γ^2 γ^2 | is equal to

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Q.7900·Miscellaneous·2017·Easy

The adjoint of the matrix A = [1 0 2; 2 1 0; 0 3 1] is

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Q.7901·Miscellaneous·2017·Easy

If A = [-2 2; 2 -2], then which one of the following is correct?

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Q.7902·Miscellaneous·2017·Easy

If p + q + r = a + b + c = 0, then the determinant | pa qb rc | | qc ra pb | | rb pc qa | equals

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