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 the following chemical is produced when Ethene reacts with cold aqueous solution of Bayer’s reagent?

[A] Methanol
[B] Glycol
[C] Methanal
[D] Ethyne

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72. Which of the following is a property of Alkanes?

[A] Alkanes are unreactive at normal conditions
[B] Alkanes are also known as Paraffins
[C] Both a and b
[D] None

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73. Which of the following polymer is obtained by the condensation reaction between ethylene glycol and terephthalic acid?

[A] Terelene
[B] PMMC
[C] PVC
[D] None of the above

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74. Which of the following is a polymer of amino acids?

[A] Starch
[B] Cellulose
[C] Proteins
[D] None of the above

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75. Which of these is a man-made polymer?

[A] Nylon
[B] Teflon
[C] Bakelite
[D] All of the above

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76. Which of the following metal is the key component of Vitamin B12?

[A] Iron
[B] Zinc
[C] Copper
[D] Cobalt

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77. Which of the following metals are the constituents of German silver?

[A] Nickel
[B] Copper
[C] Zinc
[D] All of the above

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

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

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79. Which metal has the highest melting point among all metals?

[A] Tungsten
[B] Ruthenium
[C] Gold
[D] Bismuth

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80. Which of these non-metals is lustrous?

[A] iodine
[B] selenium
[C] phosphorous
[D] All of the above

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