Chemistry General Knowledge Questions Practice Question and Answer

Q:

Which is the most economical method of removing solid matter from water?

498 0

  • 1
    Using deactivated carbon
    Correct
    Wrong
  • 2
    Electrolysis
    Correct
    Wrong
  • 3
    Distillation
    Correct
    Wrong
  • 4
    Sedimentation
    Correct
    Wrong
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Answer : 4. "Sedimentation"

Q:

The common name of dichlorodifluoromethane is _____.

518 0

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

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 is/are the example/examples of chemical change? 

(1) . Crystallization of sodium chloride 

(2) . Melting of ice 

(3) . Souring of milk 

Select the correct answer using the code given below. 

475 0

  • 1
    3 only
    Correct
    Wrong
  • 2
    1, 2 and 3
    Correct
    Wrong
  • 3
    1 and 2 only
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "3 only "

Q:

Which of the following is an oxidising agent ? 

550 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:

Which one of the following substance is used in photography and also as an antichlor ? 

720 0

  • 1
    Chrome red
    Correct
    Wrong
  • 2
    Sodium thisosulphate
    Correct
    Wrong
  • 3
    Hydrogen peroxide
    Correct
    Wrong
  • 4
    Calomel
    Correct
    Wrong
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Answer : 2. "Sodium thisosulphate "

Q:

Oiled paper is?

664 0

  • 1
    Translator
    Correct
    Wrong
  • 2
    opaque
    Correct
    Wrong
  • 3
    transparent
    Correct
    Wrong
  • 4
    none of these
    Correct
    Wrong
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Answer : 2. "opaque"

Q:

Neutron was discovered -

743 0

  • 1
    Chadwick
    Correct
    Wrong
  • 2
    Newton
    Correct
    Wrong
  • 3
    Rutherford
    Correct
    Wrong
  • 4
    Thomson
    Correct
    Wrong
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Answer : 1. "Chadwick "

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