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

1. Which among the following is responsible for depletion of Ozone?

[A] Carbon monoxide
[B] Carbon dioxide
[C] Chlorofluoro carbon
[D] Mercuric oxide

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2. Highest percentage of nitrogen is found in which among the following fertilizers among the given options?

[A] Calcium ammonium nitrate
[B] Ammonium nitrate
[C] Calcium nitrate
[D] Urea

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3. When a tube light breaks, a cracking sound is produced because ____?

[A] Pressure inside the lamp is less than atmospheric pressure
[B] Pressure inside the lamp is more than atmospheric pressure
[C] The lamp is filled with reactive gases
[D] The lamp is filled with mercury vapour

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4. Which among the following gas was leaked at Bhopal during the Bhopal gas tragedy at 2-3 December 1984?

[A] Methyl isocyanide
[B] Methyl isocyanate
[C] Methyl isochloride
[D] Methyl isochlorate

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5. Which among the following happens in an oxidation reaction ?

[A] Electrons are gained
[B] Electrons are lost
[C] Protons are gained
[D] Protons are lost

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6. “Atoms can neither be created nor destroyed.” This principle was given by __?

[A] Avogadro
[B] Dalton
[C] Rutherford
[D] Niels Bohr

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7. What is the common name of analgesic and antipyretic drug acetylsalicylic acid?

[A] Paracetamol
[B] Aspirin
[C] Wintergreen
[D] Trazodone

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8. Calamine is an ore of which among the following?

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

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9. Which among following is also known as white gold?

[A] Nickel

[B] Rhodium
[C] Platinum
[D] Palladium

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10. Kazimierz Funk or Casimir Funk, was a Polish biochemist, generally credited with the first formulation of the concept of which of the following ?

[A] Amino Acids
[D] Vitamins

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