Chemistry General Knowledge Questions Practice Question and Answer

Q:

Which of the following is an organic compound with the formula C6H4Cl2 that is used as a fumigant insecticide to control cloth months?

598 0

  • 1
    Paradichlorobenzene
    Correct
    Wrong
  • 2
    Chlorobenzene
    Correct
    Wrong
  • 3
    Benzoyl chloride
    Correct
    Wrong
  • 4
    Ethylbenzene
    Correct
    Wrong
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Answer : 1. "Paradichlorobenzene"

Q:

_______ expansion makes the Eiffel Tower taller during summers.

574 0

  • 1
    Gravitational
    Correct
    Wrong
  • 2
    Gradient
    Correct
    Wrong
  • 3
    Chemical
    Correct
    Wrong
  • 4
    Thermal
    Correct
    Wrong
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Answer : 4. "Thermal"

Q:

Which of the following methods is best suited for the separation of a mixture containing naphthalene and benzoic acid

552 0

  • 1
    Crystallization
    Correct
    Wrong
  • 2
    Chromatography
    Correct
    Wrong
  • 3
    Sublimation
    Correct
    Wrong
  • 4
    Distillation
    Correct
    Wrong
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Answer : 3. "Sublimation"

Q:

Which of the following is an oxidising agent ? 

551 0

  • 1
    KMnO4
    Correct
    Wrong
  • 2
    K2 Cr2 07
    Correct
    Wrong
  • 3
    HNO3
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 4. "All of the above "

Q:

The brand name Teflon represents which polymer?

545 0

  • 1
    Polystyrene
    Correct
    Wrong
  • 2
    Polypropylene
    Correct
    Wrong
  • 3
    Polytetrafluoroethylene
    Correct
    Wrong
  • 4
    Polyethylene terephthalate
    Correct
    Wrong
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Answer : 3. "Polytetrafluoroethylene"

Q:

The gas which is present in both the natural gas and the bio-gas is

540 0

  • 1
    Methane
    Correct
    Wrong
  • 2
    Butane
    Correct
    Wrong
  • 3
    Hydrogen
    Correct
    Wrong
  • 4
    Carbon Monoxide
    Correct
    Wrong
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Answer : 1. "Methane"

Q:

Which one of the following is non-reducing sugar?

537 0

  • 1
    Glucose
    Correct
    Wrong
  • 2
    Sucrose
    Correct
    Wrong
  • 3
    Maltose
    Correct
    Wrong
  • 4
    Lactose
    Correct
    Wrong
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Answer : 2. "Sucrose"

Q:

Find the compound which undergoes nucleophilic substitution reaction exclusively by an SN1 mechanism

524 0

  • 1
    Benzyl chloride
    Correct
    Wrong
  • 2
    Chlorobenzene
    Correct
    Wrong
  • 3
    Ethyl chloride
    Correct
    Wrong
  • 4
    Isopropyl chloride
    Correct
    Wrong
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Answer : 1. "Benzyl chloride "

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