CBSE Class 10 Science Practicals
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Questions and Answers

What type of reactions are discussed in the article?

  • Synthesis, combustion, neutralization, precipitation
  • Ionization, hydrolysis, condensation, isomerization
  • Combination, decomposition, displacement, double displacement (correct)
  • Oxidation, reduction, acid-base, redox

    • What is the aim of the experiment discussed in the article?

  • Investigating the properties of acids and bases
  • Performing and observing the actions of different types of reactions (correct)
  • Studying the behavior of gases in chemical reactions
  • Testing the effects of temperature on various substances

    • What happens when calcium oxide is mixed in water?

  • It dissolves and forms calcium hydroxide, liberating a lot of heat (correct)
  • It produces a gas and a precipitate
  • It forms a suspension with no observable change in temperature
  • It undergoes combustion and releases energy

    • What is the action of iron nails in CuSO4 considered as?

    <p>Displacement reaction</p> Signup and view all the answers

    What type of reaction occurs between NaSO4 and BaCl2?

    <p>Double displacement reaction</p> Signup and view all the answers

    Study Notes

    Types of Reactions

    • Various chemical reactions are explored, including displacement and precipitation reactions.
    • Displacement reactions involve one element replacing another in a compound.
    • Precipitation reactions form a solid from soluble reactants in solution.

    Aim of the Experiment

    • The experiment is designed to demonstrate the characteristics of specific chemical reactions.
    • It aims to observe the changes in reactants and products during the reactions.

    Calcium Oxide and Water

    • When calcium oxide (CaO) is mixed with water, it reacts exothermically to form calcium hydroxide (Ca(OH)2).
    • This reaction releases heat and produces a strong alkaline solution known as limewater.

    Action of Iron Nails in CuSO4

    • The reaction of iron nails with copper(II) sulfate (CuSO4) is considered a displacement reaction.
    • Iron displaces copper from the solution, resulting in the formation of iron(II) sulfate and elemental copper.

    Reaction Between Na2SO4 and BaCl2

    • The reaction between sodium sulfate (Na2SO4) and barium chloride (BaCl2) is a double displacement reaction.
    • This reaction produces barium sulfate (BaSO4) as a precipitate and sodium chloride (NaCl) in solution.

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    Description

    Test your knowledge of different types of reactions with this CBSE Class 10 Science Practicals quiz. Explore combination, decomposition, displacement, and double displacement reactions as you learn the step-by-step procedures and concepts.

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