General Science Chemistry MCQs

Chemistry Objective (Multiple Choice) General Knowledge Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examination

21. What is the unit of Stress?

[A] N/m
[B] Kg/m
[C] Nm
[D] It has no units

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22. What is the maximum stress after which the wire breaks called as?

[A] Tensile strength
[B] Shear strength
[C] Bulk strength
[D] Hooke’s strength

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23. What is the ratio of normal stress to the volumetric strain within the elastic limits is called as?

[A] Bulk Modulus
[B] Young Modulus
[C] Modulus of Rigidity
[D] None of the above

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24. Which among the following acids is generally used as a first hand test to judge whether a metal is Gold or not?

[A] Sulfuric Acid
[B] Nitric Acid
[C] Hydrochloric Acid
[D] Sulfurous Acid

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25. What happens to the non-metallic character of elements in the p-block of the periodic table?

[A] non-metallic character decreases down the group
[B] non-metallic character increases down the group
[C] No fix pattern
[D] None

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26. What is the general outer electron configuration of Group 13 elements?

[A] ns2 np2
[B] ns2
[C] ns2 np1
[D] ns2 np3

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27. Which of these is NOT an allotropic form of carbon?

[A] Diamond
[B] Graphite
[C] Fullerene
[D] None of the above

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28. Which of the following alkaline earth metals is the rarest in the earth crust?

[A] Calcium
[B] Strontium
[C] Radium
[D] Beryllium

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29. What is water gas?

[A] mixture of CO and H2
[B] mixture of CO and H2O
[C] mixture of CO2 and H2
[D] Carbon mono-oxide

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30. Which of the following catalyst is used generally during the hydrogenation of Alkenes?

[A] Platinum
[B] Palladium
[C] Nickel
[D] All of the above

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