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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.4285·Miscellaneous·2021·Easy

Which of the following are the primary colours of light?

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Q.4286·Miscellaneous·2021·Easy

Which one of the following colours may be obtained by combining green and red colours?

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Q.4287·Miscellaneous·2021·Easy

The image we see in plane mirror is

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Q.4288·Miscellaneous·2021·Easy

Numerically two thermometers, one in Fahrenheit scale and another in Celsius scale shall read same at

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Q.4289·Miscellaneous·2021·Easy

Which one of the following is the lowest possible temperature?

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Q.4290·Miscellaneous·2021·Easy

Which of the following sets of elements has the same valency?

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Q.4291·Miscellaneous·2021·Easy

Solder is an alloy of

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Q.4292·Miscellaneous·2021·Easy

In electrolytic refining of copper, the electrolyte is a solution of

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Q.4293·Miscellaneous·2021·Easy

The composition of gases in exosphere is

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Q.4294·Miscellaneous·2021·Easy

Which one of the following is the chemical formula of Hypobromous acid?

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Q.4295·Miscellaneous·2021·Easy

The statement "friction force is a contact force while magnetic force is a non-contact force" is

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Q.4296·Miscellaneous·2021·Easy

LED (a semi-conductor device) is an abbreviation that stands for

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Q.4297·Miscellaneous·2021·Easy

Which of the following pairs of physical phenomenon and the discoverer is/are correctly matched? 1.James Chadwick : Photoelectric effect 2.Albert Einstein : Neutron 3.Marie Curie : Radium Select the correct answer using the code given below:

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Q.4298·Miscellaneous·2021·Easy

Which one of the following regarding density of water at atmospheric pressure is correct?

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Q.4299·Miscellaneous·2021·Easy

Consider the following statements about Light year: 1.Light year is a unit for measurement of very large distances. 2.Light year is a unit for measurement of very large time intervals. 3. Light year is a unit for measurement of intensity of light. Which of the statements given above is/are correct?

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Q.4300·Miscellaneous·2021·Easy

Which of the following statements about the Indian Councils Act of 1861 is/are correct? 1. It enlarged the Governor General's Council for the purpose of making laws. 2. The Governor General was not authorised to increase the number of members. Select the correct answer using the code given below:

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Q.4301·Miscellaneous·2021·Easy

Who among the following described the Directive Principles of State Policy as the novel feature of the Constitution of India?

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Q.4302·Miscellaneous·2021·Easy

Which one of the following statements about the Attorney General of India is not correct?

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