Chemistry General Knowledge Questions Practice Question and Answer

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:

The coil in a heater is made of

717 1

  • 1
    Nichrome
    Correct
    Wrong
  • 2
    Tungsten
    Correct
    Wrong
  • 3
    Copper
    Correct
    Wrong
  • 4
    Iron
    Correct
    Wrong
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Answer : 1. "Nichrome"

Q:

Which of the following has low density and low melting point?

704 0

  • 1
    Na
    Correct
    Wrong
  • 2
    Fe
    Correct
    Wrong
  • 3
    Cu
    Correct
    Wrong
  • 4
    Au
    Correct
    Wrong
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Answer : 1. "Na"

Q:

In the nucleus of Helium,

701 0

  • 1
    four protons
    Correct
    Wrong
  • 2
    four neutrons
    Correct
    Wrong
  • 3
    two neutrons and two protons
    Correct
    Wrong
  • 4
    four protons and two electrons
    Correct
    Wrong
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Answer : 3. "two neutrons and two protons"

Q:

Which of the following is a non-metal?

692 0

  • 1
    Cobalt
    Correct
    Wrong
  • 2
    Hydrogen
    Correct
    Wrong
  • 3
    iron
    Correct
    Wrong
  • 4
    gold
    Correct
    Wrong
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Answer : 2. "Hydrogen"

Q:

Water in case of HCl acts as a/an ___________, in case of ammonia acts as a/an ________

692 0

  • 1
    Base, base
    Correct
    Wrong
  • 2
    Base, acid
    Correct
    Wrong
  • 3
    Acid, base
    Correct
    Wrong
  • 4
    Acid, acid
    Correct
    Wrong
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Answer : 2. "Base, acid "

Q:

What happens in most toothpastes to prevent tooth decay?

680 0

  • 1
    Bromide
    Correct
    Wrong
  • 2
    Fluoride
    Correct
    Wrong
  • 3
    Iodide
    Correct
    Wrong
  • 4
    Chloride
    Correct
    Wrong
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Answer : 2. "Fluoride"

Q:

Which of the following compound contains only Carbon and Hydrogen atoms in their formation?

673 0

  • 1
    Chloroform
    Correct
    Wrong
  • 2
    Teflon
    Correct
    Wrong
  • 3
    Ethanol
    Correct
    Wrong
  • 4
    Benzene
    Correct
    Wrong
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Answer : 4. "Benzene"

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