Chemistry Practice Question and Answer

Q:

Which carbohydrate is used in silvering of mirrors?

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  • 1
    Glucose
    Correct
    Wrong
  • 2
    Starch
    Correct
    Wrong
  • 3
    Fructose
    Correct
    Wrong
  • 4
    Sucrose
    Correct
    Wrong
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Answer : 1. "Glucose "

Q:

Which among the following noble gas has highest molar mass?

3086 0

  • 1
    Kr
    Correct
    Wrong
  • 2
    ne
    Correct
    Wrong
  • 3
    Ar
    Correct
    Wrong
  • 4
    Xe
    Correct
    Wrong
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Answer : 4. "Xe"

Q:

Methyl propane is an isomer of-

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  • 1
    n-pentane
    Correct
    Wrong
  • 2
    n-butane
    Correct
    Wrong
  • 3
    n-propane
    Correct
    Wrong
  • 4
    n-hexane
    Correct
    Wrong
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Answer : 2. "n-butane"

Q:

Soda lime is a mixture of

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  • 1
    NaOH + CaCO3
    Correct
    Wrong
  • 2
    NaOH + CaO
    Correct
    Wrong
  • 3
    NaOH + HOH
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "NaOH + CaO"

Q:

Table salt gets moist during rainy season because - 

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  • 1
    sodium chloride contains some quantity of sodium iodide
    Correct
    Wrong
  • 2
    sodium chloride contains hygroscopic impurities like - magnesium chloride
    Correct
    Wrong
  • 3
    sodium chloride Is hygroscopic
    Correct
    Wrong
  • 4
    sodium chloride is deliquescent
    Correct
    Wrong
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Answer : 2. "sodium chloride contains hygroscopic impurities like - magnesium chloride "

Q:

Which is known as carbolic acid? 

2001 1

  • 1
    Phenol
    Correct
    Wrong
  • 2
    Ethanol
    Correct
    Wrong
  • 3
    Acetic acid
    Correct
    Wrong
  • 4
    Oxalic acid
    Correct
    Wrong
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Answer : 1. "Phenol "

Q:

The substances used for artificial rain is

1998 0

  • 1
    Silver iodide
    Correct
    Wrong
  • 2
    Silver bromide
    Correct
    Wrong
  • 3
    Ammonium nitrate
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 1. "Silver iodide "

Q:

Which one of the following is not a plant product? 

1943 0

  • 1
    Nicotine
    Correct
    Wrong
  • 2
    Saccharin
    Correct
    Wrong
  • 3
    Caffeine
    Correct
    Wrong
  • 4
    Piperine
    Correct
    Wrong
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Answer : 2. "Saccharin "

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