Chemistry MCQs

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

1. A cotton wick dipped in pure honey when ignited with a matchstick will ______?
[A] Burn steadily
[B] Burn with a cracking sound
[C] Not burn at all
[D] Burn producing a large amount of smoke

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2. What type of fiber is Rayon considered?
[A] A synthetic fiber
[B] A natural fiber
[C] A semi-synthetic fiber
[D] A synthetic detergent

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3. Which colour does cobalt oxide impart to glass?
[A] Brown
[B] Blue
[C] Red
[D] Yellow

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4. Cassiterite is most important source of which of these metals?
[A] Nickel
[B] Tin
[C] Tungsten
[D] Silver

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5. Which of the following elements have the lowest and highest boiling point in the Periodic table?
[A] Helium and Tungsten
[B] Hydrogen and Rhenium
[C] Helium and Rhenium
[D] Hydrogen and Tungsten

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6. Which of the following element has the highest first ionization enthalpy?
[A] Magnesium
[B] Strontium
[C] Beryllium
[D] Barium

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7. What do we call the energy required to remove loosely bound electron from an atom?
[A] Excitation energy
[B] Atom energy
[C] Ionization energy
[D] Shell energy

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8. Which of the following is the chemical formula of Carbonic acid?
[A] Ca CO2
[B] H2 CO3
[C] H3 CO4
[D] H CO3

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9. What is the reason for the presence of the vast number of organic compounds in nature?
[A] Carbon exists in free state
[B] Catenation property of carbon
[C] Low atomic mass of carbon
[D] None of the above

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10. Which of the following is the product of the reaction between Ethanoic acid and Sodium hydrogen carbonate?
[A] Ethyne
[B] Sodium acetate
[C] Ethanol
[D] Sodium hydroxide

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