Chemistry GK Practice Question and Answer

Q:

Zinc and lead, than copper?

4440 0

  • 1
    is less active
    Correct
    Wrong
  • 2
    is more active
    Correct
    Wrong
  • 3
    is equally functional
    Correct
    Wrong
  • 4
    Others
    Correct
    Wrong
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Answer : 2. "is more active"

Q:

Which of the following is a heterogeneous compound?

4207 0

  • 1
    Plaster of Paris
    Correct
    Wrong
  • 2
    Chalk
    Correct
    Wrong
  • 3
    Marble
    Correct
    Wrong
  • 4
    Limestone
    Correct
    Wrong
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Answer : 1. "Plaster of Paris"

Q:

What is liberated when the base is dissolved in water?

1545 0

  • 1
    (OH) - ion
    Correct
    Wrong
  • 2
    H + ion
    Correct
    Wrong
  • 3
    Both ions
    Correct
    Wrong
  • 4
    No ion
    Correct
    Wrong
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Answer : 1. "(OH) - ion"

Q:

A fermentation of grapes?

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  • 1
    chemical change is
    Correct
    Wrong
  • 2
    physical change
    Correct
    Wrong
  • 3
    Both chemical and physical changes
    Correct
    Wrong
  • 4
    Others
    Correct
    Wrong
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Answer : 1. "chemical change is"

Q:

Approximate pH value of lemon juice?

1503 0

  • 1
    10
    Correct
    Wrong
  • 2
    2.2
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    14
    Correct
    Wrong
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Answer : 2. "2.2"

Q:

Which of the following is the softest?

1199 0

  • 1
    Sodium
    Correct
    Wrong
  • 2
    Copper
    Correct
    Wrong
  • 3
    Iron
    Correct
    Wrong
  • 4
    Aluminum
    Correct
    Wrong
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Answer : 1. "Sodium"

Q:

Which acid is found in vinegar?

1195 0

  • 1
    lactic acid
    Correct
    Wrong
  • 2
    citric acid
    Correct
    Wrong
  • 3
    Methanoic acid
    Correct
    Wrong
  • 4
    Acetic acid
    Correct
    Wrong
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Answer : 4. "Acetic acid"

Q:

Which of the following metals can be cut with a knife?

1161 0

  • 1
    Magnesium
    Correct
    Wrong
  • 2
    Sulfur
    Correct
    Wrong
  • 3
    Sodium
    Correct
    Wrong
  • 4
    Chromium
    Correct
    Wrong
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Answer : 3. "Sodium"

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