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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.5149·Miscellaneous·2020·Easy

Identify the correct pair of elements among the following which are liquid at room temperature and standard pressure.

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Q.5150·Miscellaneous·2020·Easy

Silver articles turn black when kept in the open for longer time due to the formation of

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Q.5151·Miscellaneous·2020·Easy

Which of the following lenses will bend the light rays through largest angle ?

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Q.5152·Miscellaneous·2020·Easy

Antibiotic such as penicillin blocks

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Q.5153·Miscellaneous·2020·Easy

In human beings, the chromosomes that determine birth of a normal female child are

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Q.5154·Miscellaneous·2020·Easy

Mature sclerenchyma cells have

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Q.5155·Miscellaneous·2020·Easy

Which one of the following statements about phloem is correct ?

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Q.5156·Miscellaneous·2020·Easy

Who among the following has won the Singles Title in Wimbledon Tennis Championship (Women) in the year 2019 ?

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Q.5157·Miscellaneous·2020·Easy

In August 2020, who among the following was administered the oath as the Prime Minister of Sri Lanka for the fourth time ?

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Q.5158·Miscellaneous·2020·Easy

Which one of the following Indian Ocean island nations has recently declared a state of environmental emergency due to oil spill from a grounded ship ?

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Q.5159·Miscellaneous·2020·Easy

Recently islands of Andaman and Nicobar were connected with mainland by Submarine Optical Fibre Cable. Which one of the following islands was not connected initially ?

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Q.5160·Miscellaneous·2020·Easy

If the distance between two objects is increased by two times, the gravitational force between them will

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Q.5161·Miscellaneous·2020·Easy

Which one of the following statements about the properties of neutrons is not correct ?

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Q.5162·Miscellaneous·2020·Easy

Which one of the following statements with regard to ultraviolet light is not correct ?

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Q.5163·Miscellaneous·2020·Easy

Which of the following statements with regard to the privileges of the Members of Parliament are correct ? 1.Privileges would not be fettered by Article 19(1)(a) of the Constitution of India. 2.Privileges must be read subject to Articles 20-22 and Article 32 of the Constitution. 3.Immunity is available in relation to both civil and criminal prosecution. 4.Immunity is available in relation to freedom of speech even in his/her private or personal capacity. Select the correct answer using the code below:

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Q.5164·Miscellaneous·2020·Easy

If the speed of light in air is represented by c and the speed in a medium is v , then the refractive index of the medium can be calculated using the formula

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Q.5165·Miscellaneous·2020·Easy

Ibn Batuta went to China as the envoy of which one of the following Delhi Sultans ?

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Q.5166·Miscellaneous·2020·Easy

The recent explosion near OIL well in Baghjan is due to

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