Chemistry Practice Question and Answer

Q:

Which one of the following is non-reducing sugar?

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  • 1
    Glucose
    Correct
    Wrong
  • 2
    Sucrose
    Correct
    Wrong
  • 3
    Maltose
    Correct
    Wrong
  • 4
    Lactose
    Correct
    Wrong
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Answer : 2. "Sucrose"

Q:

Oiled paper is?

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  • 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:

In the nucleus of Helium,

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  • 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 methods is best suited for the separation of a mixture containing naphthalene and benzoic acid

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  • 1
    Crystallization
    Correct
    Wrong
  • 2
    Chromatography
    Correct
    Wrong
  • 3
    Sublimation
    Correct
    Wrong
  • 4
    Distillation
    Correct
    Wrong
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Answer : 3. "Sublimation"

Q:

The alkaloid naturally found in coffee, cocoa and colanut is

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  • 1
    Cocaine
    Correct
    Wrong
  • 2
    Morphine
    Correct
    Wrong
  • 3
    Tannin
    Correct
    Wrong
  • 4
    Caffeine
    Correct
    Wrong
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Answer : 4. "Caffeine"

Q:

What is the percentage of carbon in steel?

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  • 1
    3 %
    Correct
    Wrong
  • 2
    4 %
    Correct
    Wrong
  • 3
    2 %
    Correct
    Wrong
  • 4
    5 %
    Correct
    Wrong
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Answer : 3. "2 %"

Q:

_______ expansion makes the Eiffel Tower taller during summers.

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  • 1
    Gravitational
    Correct
    Wrong
  • 2
    Gradient
    Correct
    Wrong
  • 3
    Chemical
    Correct
    Wrong
  • 4
    Thermal
    Correct
    Wrong
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Answer : 4. "Thermal"

Q:

What happens in most toothpastes to prevent tooth decay?

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

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