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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.8731·Miscellaneous·2017·Easy

In which one of the following States is Loktak Lake situated?

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Q.8732·Miscellaneous·2017·Easy

Which one of the following statements is correct? For the purpose of Census 2011

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Q.8733·Miscellaneous·2017·Easy

What is the number of atoms in 46 g of sodium-23 ( N = Avogadro constant)?

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Q.8734·Miscellaneous·2017·Easy

Which one of the following is the most characteristic property of an element?

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Q.8735·Miscellaneous·2017·Easy

The pH value of a sample of multiple-distilled water is

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Q.8736·Miscellaneous·2017·Easy

Which one of the following is a physical change?

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Q.8737·Miscellaneous·2017·Easy

For which one of the following does the centre of mass lie outside the body?

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Q.8738·Miscellaneous·2017·Easy

A parallel-plate capacitor, with air in between the plates, has capacitance C. Now the space between the two plates of the capacitor is filled with a dielectric of dielectric constant 7. Then the value of the capacitance will become

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Q.8739·Miscellaneous·2017·Easy

Which one of the following is not a semiconductor?

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Q.8740·Miscellaneous·2017·Easy

Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

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Q.8741·Miscellaneous·2017·Easy

When a piece of pure silicon is doped with aluminium, then

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Q.8742·Miscellaneous·2017·Easy

Bleeding of gums, falling of teeth, fragile bones and delayed wound healing occur due to the deficiency of which one of the following vitamins?

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Q.8743·Miscellaneous·2017·Easy

Syngamy results in formation of

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Q.8744·Miscellaneous·2017·Easy

Most viruses that infect plants possess

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Q.8745·Miscellaneous·2017·Easy

In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cells

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Q.8746·Miscellaneous·2017·Easy

AIDS is caused by the Human Immuno-deficiency Virus (HIV). The transmission of HIV infection generally occurs through

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Q.8747·Miscellaneous·2017·Easy

Polynucleotide chain of DNA contains

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Q.8748·Miscellaneous·2017·Easy

The radius of a circle is increased so that its circumference increases by 15%. The area of the circle will increase by

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