Science GK Practice Question and Answer

Q: Which have the maximum density ? 2250 0

  • 1
    water
    Correct
    Wrong
  • 2
    Benzene
    Correct
    Wrong
  • 3
    Ice
    Correct
    Wrong
  • 4
    Chloroform
    Correct
    Wrong
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Answer : 1. "water"

Q: Which one of the following is the softest? 1632 0

  • 1
    sodium
    Correct
    Wrong
  • 2
    iron
    Correct
    Wrong
  • 3
    aluminium
    Correct
    Wrong
  • 4
    lithium
    Correct
    Wrong
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Answer : 1. "sodium"

Q: pH of blood is ? 1503 0

  • 1
    10.4
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    7.4
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 3. "7.4"

Q: Washing soda is ? 1336 0

  • 1
    sodium sulphite
    Correct
    Wrong
  • 2
    sodium bicarbonate
    Correct
    Wrong
  • 3
    sodium carbonate
    Correct
    Wrong
  • 4
    sodium biosulphite
    Correct
    Wrong
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Answer : 3. "sodium carbonate"

Q: Air contains maximum amount of 1629 0

  • 1
    oxygen
    Correct
    Wrong
  • 2
    nitrogen
    Correct
    Wrong
  • 3
    hydrogen
    Correct
    Wrong
  • 4
    carbon dioxide
    Correct
    Wrong
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Answer : 2. "nitrogen"

Q: Homo nuclear molecules contain ? 1711 0

  • 1
    polar bond
    Correct
    Wrong
  • 2
    covalent bond
    Correct
    Wrong
  • 3
    ionic bond
    Correct
    Wrong
  • 4
    coordinate bond
    Correct
    Wrong
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Answer : 2. "covalent bond"

Q: What nucleus of atom contains ? 1388 0

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

Q: Nail polish remover contains ? 1399 0

  • 1
    benzene
    Correct
    Wrong
  • 2
    acetic acid
    Correct
    Wrong
  • 3
    acetone
    Correct
    Wrong
  • 4
    petroleum ether
    Correct
    Wrong
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Answer : 3. "acetone"

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