Chemistry GK Practice Question and Answer

Q:

Which acid is in tamarind?

805 0

  • 1
    Methanoic acid
    Correct
    Wrong
  • 2
    Tartaric acid
    Correct
    Wrong
  • 3
    lactic acid
    Correct
    Wrong
  • 4
    Oxalic acid
    Correct
    Wrong
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Answer : 2. "Tartaric acid"

Q:

What is liberated when the base is dissolved in water?

1568 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:

What is the pH value of salts made from strong acids and weak bases?

954 0

  • 1
    more than 7
    Correct
    Wrong
  • 2
    less than 7
    Correct
    Wrong
  • 3
    Between 10 and 14
    Correct
    Wrong
  • 4
    less than 14
    Correct
    Wrong
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Answer : 2. "less than 7"

Q:

What type of reaction is respiration?

922 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:

What are the substances that participate in a reaction?

808 0

  • 1
    consideration
    Correct
    Wrong
  • 2
    Deductive
    Correct
    Wrong
  • 3
    reactants
    Correct
    Wrong
  • 4
    Oxidizer
    Correct
    Wrong
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Answer : 3. "reactants"

Q:

Sodium chloride and water are formed by the reaction of sodium hydroxide and hydrochloric acid. What is this reaction?

855 0

  • 1
    neutralization
    Correct
    Wrong
  • 2
    Disintegration
    Correct
    Wrong
  • 3
    combination
    Correct
    Wrong
  • 4
    precipitation
    Correct
    Wrong
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Answer : 1. "neutralization"

Q:

Which of the following reactions always have pairs together?

833 0

  • 1
    combination and dissolution
    Correct
    Wrong
  • 2
    precipitation and displacement
    Correct
    Wrong
  • 3
    neutralization and displacement
    Correct
    Wrong
  • 4
    Oxidation and degradation
    Correct
    Wrong
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Answer : 4. "Oxidation and degradation"

Q:

What is the increase in the ratio of oxygen in a chemical reaction?

1050 0

  • 1
    Reduction reaction
    Correct
    Wrong
  • 2
    oxidation reaction
    Correct
    Wrong
  • 3
    endothermic reaction
    Correct
    Wrong
  • 4
    displacement reaction
    Correct
    Wrong
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Answer : 2. "oxidation reaction"

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