Chemistry GK Practice Question and Answer

Q:

Which of the following metals burns with a golden flame?

965 0

  • 1
    Zn
    Correct
    Wrong
  • 2
    K
    Correct
    Wrong
  • 3
    Mg
    Correct
    Wrong
  • 4
    Na
    Correct
    Wrong
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Answer : 4. "Na"

Q:

Approximate pH value of lemon juice?

1505 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:

Is gas given with oxygen to patients for diagnosis of breathing problem?

963 0

  • 1
    Helium
    Correct
    Wrong
  • 2
    Organ
    Correct
    Wrong
  • 3
    Radon
    Correct
    Wrong
  • 4
    Krypton
    Correct
    Wrong
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Answer : 1. "Helium"

Q:

Which of the following properties does not show metals?

878 0

  • 1
    Sound nature
    Correct
    Wrong
  • 2
    Tensile
    Correct
    Wrong
  • 3
    electrical conductivity
    Correct
    Wrong
  • 4
    Mandata
    Correct
    Wrong
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Answer : 4. "Mandata"

Q:

Ant stings occur in?

904 0

  • 1
    oxide acid
    Correct
    Wrong
  • 2
    Formic acid
    Correct
    Wrong
  • 3
    lactic acid
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "Formic acid"

Q:

Herbs- The decomposition of vegetables into compost is an example of which reaction?

803 0

  • 1
    endothermic
    Correct
    Wrong
  • 2
    exothermic
    Correct
    Wrong
  • 3
    substitution
    Correct
    Wrong
  • 4
    Amphibian
    Correct
    Wrong
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Answer : 2. "exothermic"

Q:

What type of reaction is respiration?

904 0

  • 1
    exothermic reaction
    Correct
    Wrong
  • 2
    combination reaction
    Correct
    Wrong
  • 3
    oxidation-reduction reaction
    Correct
    Wrong
  • 4
    two-decomposition reaction
    Correct
    Wrong
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Answer : 1. "exothermic reaction"

Q:

Which of the following metals are kept immersed in kerosene?

787 0

  • 1
    Sodium
    Correct
    Wrong
  • 2
    Magnesium
    Correct
    Wrong
  • 3
    Zinc
    Correct
    Wrong
  • 4
    all
    Correct
    Wrong
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Answer : 1. "Sodium"

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