Chemistry and Biology Basics Quiz
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Chemistry and Biology Basics Quiz

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@SuccessfulShakuhachi

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Questions and Answers

What is a homogeneous mixture?

  • A mixture where the components are evenly distributed (correct)
  • A mixture with visible different phases
  • A mixture with settling of components over time
  • A mixture where the components can be easily separated

    • Which drug is commonly used in Cancer therapy?

  • Insulin
  • Aspirin
  • Penicillin
  • Chemotherapy drugs (correct)

    • What is the difference between Precision and Accuracy?

  • Precision refers to how close a measurement is to the actual value, while Accuracy refers to the reproducibility of results. (correct)
  • Precision refers to random errors, while Accuracy refers to systematic errors.
  • Precision refers to how close a measurement is to the actual value, while Accuracy refers to random errors.
  • Precision refers to systematic errors, while Accuracy refers to how close a measurement is to the actual value.

    • What is the relation between Kelvin scale and Celsius scale?

    <p>K = °C + 273</p> Signup and view all the answers

    Which device is used in the laboratory to measure the volume of liquids or solutions?

    <p>Pipette</p> Signup and view all the answers

    What is the characteristic property of gases among solids, liquids, and gases?

    <p>No definite volume or shape</p> Signup and view all the answers

    What is the oxidation number of oxygen in potassium superoxide (KO2)?

    <p>+1</p> Signup and view all the answers

    Which two decomposition reactions are NOT redox reactions?

    <p>NH4NO3 -&gt; N2 + 2H2O</p> Signup and view all the answers

    Which reaction involves an element existing in at least three oxidation states?

    <p>Disproportionation Reaction</p> Signup and view all the answers

    What is the correct oxidation number of sulphur in tetrathionate ion (S2O6^2-)?

    <p>+4</p> Signup and view all the answers

    Which statement about halogens' displacement reactions in aqueous solutions is true?

    <p>They involve the displacement of a halogen by another halogen.</p> Signup and view all the answers

    Which is not true about Boyle's Law?

    <p>It describes the behavior of ideal gases only.</p> Signup and view all the answers

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