Chemistry General Knowledge Questions Practice Question and Answer

Q:

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

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

Q:

In which of the following classifications are the elements arranged in the order of their increasing atomic number?

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  • 1
    The Modern Periodic Table
    Correct
    Wrong
  • 2
    Mendeleev's Periodic Table/
    Correct
    Wrong
  • 3
    Newland's Law of Octaves
    Correct
    Wrong
  • 4
    Dobereiner's Triads
    Correct
    Wrong
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Answer : 1. "The Modern Periodic Table "

Q:

The brand name Teflon represents which polymer?

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  • 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

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  • 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:

Read the following questions carefully and answer them. 

The gas used for artificial fruit ripening of green fruit is —

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  • 1
    Ethylene
    Correct
    Wrong
  • 2
    Acetylene
    Correct
    Wrong
  • 3
    Ethane
    Correct
    Wrong
  • 4
    Methane
    Correct
    Wrong
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Answer : 1. "Ethylene "

Q:

In chemistry, soap is a salt of a ............

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  • 1
    Fatty acid
    Correct
    Wrong
  • 2
    Glycol
    Correct
    Wrong
  • 3
    Phosphorous
    Correct
    Wrong
  • 4
    Ammounium Carbonate
    Correct
    Wrong
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Answer : 1. "Fatty acid"

Q:

Which of the following is an oxidising agent ? 

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  • 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 common name of dichlorodifluoromethane is _____.

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  • 1
    gypsum
    Correct
    Wrong
  • 2
    borax
    Correct
    Wrong
  • 3
    galena
    Correct
    Wrong
  • 4
    Freon
    Correct
    Wrong
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Answer : 4. "Freon"

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