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

71. Which of these is not a Linear polymer?

[A] Starch
[B] Polyethelene
[C] Nylons
[D] Polyesters

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72. Which of the following metals is the major constituent of Pewter alloy?

[A] Tin
[B] Indium
[C] Titanium
[D] Lead

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73. Which of these non-metals is mainly used as an inert shielding gas?

[A] Xenon
[B] Hydrogen
[C] Argon
[D] Krypton

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74. Which of these elements is used as a dopant in n-type silicon wafers?

[A] Antimony
[B] Iodine
[C] Carbon
[D] Radon

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75. What are the structures formed by the soap molecules, during cleansing, known as?

[A] Stereates
[B] Esters
[C] Micelles
[D] Tubes

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76. Which of these salts is responsible for the hardness of water?

[A] Calcium
[B] Magnesium
[C] Sodium
[D] Both a and b

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77. Which of the following detergents represent the liquid dishwashing detergents?

[A] Anionic
[B] Cationic
[C] Non-ionic
[D] None of the above

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78. Which of these chemical is used to form soaps containing sodium salts?

[A] Sulphuric acid
[B] Sodium hydroxide
[C] Nitric acid
[D] Carbonic acid

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79. Which of these drugs help to reduce or abolish pain without causing impairment of consciousness?

[A] Analgesics
[B] Antibiotics
[C] Tranquilisers
[D] Antiseptics

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80. Which of the following is the use of Aspirin drug?

[A] Reduces fever
[B] helps in skeletal pain
[C] helps in preventing heart attacks
[D] All of the above

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