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 of the following is the poorest conductor of heat in comparison to other options?
[A] Silver
[B] Copper
[C] Lead
[D] Mercury

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2. The energy required to remove an electron from the outermost shell of an atom in its isolated gaseous state is called?
[A] Electron Affinity
[B] Reducing Potential
[C] Ionization Potential
[D] Shell Potential

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3. Which among the following is known as Quick Lime?
[A] CaO
[B] CaCO2
[C] Ca(OH)2
[D] CaCl2

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4. The primary part of Liquefied Petroleum Gas LPG is ______?
[A] Butane
[B] Methane
[C] Propane
[D] Butane or Propane

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5. L.P.G. is a hydrocarbon consisting of a mixture of :
[A] Methane and Butane
[B] Propane and Butane
[C] Ethane and Propane
[D] Ethane and Butane

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6. Flint, which was used by the prehistoric man to make tools is a __?
[A] Igneous rock
[B] Sedimentary rock
[C] Metamorphic rock
[D] None of the above

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7. Plumbism is a condition which occurs due to accumulation of:
[A] Lead in the body
[B] Sodium in the body
[C] Cadmium in the body
[D] Potassium in the body

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8. What is the chemical name of Quick lime?
[A] Calcium peroxide
[B] Calcium oxide
[C] Calcium dioxide
[D] Calcium hydroxide

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9. Which of the following element is NOT an alkaline earth metal?
[A] Magnesium
[B] Strontium
[C] Barium
[D] Beryllium

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10. Water Gas is a mixture of?
[A] CO and H2
[B] CO and H2O
[C] CO2 and H2
[D] None of the Above

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