Chemistry Practice Question and Answer

Q:

Which one of the following is also known as ' wood spirit’s? 

1612 0

  • 1
    Methyl alcohol
    Correct
    Wrong
  • 2
    Ethyl alcohol
    Correct
    Wrong
  • 3
    Ethylene glycol
    Correct
    Wrong
  • 4
    Glycerol
    Correct
    Wrong
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Answer : 1. "Methyl alcohol "

Q:

Percentage of lead in lead pencil is: 

1603 0

  • 1
    zero
    Correct
    Wrong
  • 2
    20
    Correct
    Wrong
  • 3
    80
    Correct
    Wrong
  • 4
    7
    Correct
    Wrong
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Answer : 1. "zero "

Q:

Which acid is found in vinegar?

1599 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 is the most common kidney stone-forming compound?

1588 0

  • 1
    Calcium oxalate
    Correct
    Wrong
  • 2
    Magnesium oxide
    Correct
    Wrong
  • 3
    Sodium bicarbonate
    Correct
    Wrong
  • 4
    Magnesium citrate
    Correct
    Wrong
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Answer : 1. "Calcium oxalate"

Q:

Which of the following is the softest?

1569 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:

Boiling Point of a liquid due to impurities

1558 0

  • 1
    increases
    Correct
    Wrong
  • 2
    decreases
    Correct
    Wrong
  • 3
    remains unchanged
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "increases"

Q:

A pungent small often present near the urinals is due to

1533 0

  • 1
    Ammonia
    Correct
    Wrong
  • 2
    Urea
    Correct
    Wrong
  • 3
    Sulphur- di-oxide
    Correct
    Wrong
  • 4
    Chlorine
    Correct
    Wrong
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Answer : 1. "Ammonia "

Q:

What is used of Capacitor in an electrical circuit?

1522 0

  • 1
    Step down voltage
    Correct
    Wrong
  • 2
    Step up voltage
    Correct
    Wrong
  • 3
    Store electric charge
    Correct
    Wrong
  • 4
    Produce electric charge
    Correct
    Wrong
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Answer : 3. "Store electric charge"

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