Reactions Of Acids And Bases

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| By Manjubrijesh2014
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Manjubrijesh2014
Community Contributor
Quizzes Created: 2 | Total Attempts: 539
Questions: 5 | Attempts: 147

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Reactions Of Acids And Bases - Quiz

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Questions and Answers
  • 1. 

    When zinc reacts with sulphuric acid the salt formed is 

    • A.

      Zinc sulphate

    • B.

      Zinc oxide 

    • C.

      Zinc nitrate

    • D.

      Zinc chloride 

    Correct Answer
    A. Zinc sulphate
    Explanation
    When zinc reacts with sulphuric acid, the salt formed is zinc sulphate. This is because zinc displaces hydrogen from sulphuric acid, resulting in the formation of zinc sulphate and the release of hydrogen gas.

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  • 2. 

    Copper will not react with acid because

    • A.

      Copper is less reactive than hydrogen

    • B.

      Copper is more reactive than hydrogen

    • C.

      Copper is more reactive than chlorine 

    • D.

      None of these 

    Correct Answer
    A. Copper is less reactive than hydrogen
    Explanation
    Copper will not react with acid because it is less reactive than hydrogen. This means that copper does not readily give away its electrons to form positive ions, unlike hydrogen. As a result, copper does not easily react with acid to produce a reaction.

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  • 3. 

    When sodium reacts with hydro chloric acid we get 

    • A.

      Sodium chloride and hydrogen

    • B.

      Sodium sulphate and water

    • C.

      Sodium nitrate and hydrogen

    • D.

      Sodium oxide and water 

    Correct Answer
    A. Sodium chloride and hydrogen
    Explanation
    When sodium reacts with hydrochloric acid, it undergoes a single displacement reaction. The sodium displaces the hydrogen from the hydrochloric acid, forming sodium chloride and hydrogen gas. This is because sodium is more reactive than hydrogen and can replace it in the compound. Therefore, the correct answer is sodium chloride and hydrogen.

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  • 4. 

    When metals react with acid we get

    • A.

      Salt and water 

    • B.

      Salt and oxygen

    • C.

      Salt and hydrogen

    • D.

      Salt and nitrogen

    Correct Answer
    C. Salt and hydrogen
    Explanation
    When metals react with acid, they undergo a displacement reaction where the metal displaces hydrogen from the acid. This results in the formation of a salt and hydrogen gas. Therefore, the correct answer is "salt and hydrogen".

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  • 5. 

    Magnesium hydroxide reacting with hydrochloric acid  is called 

    • A.

      Neutralisation reaction

    • B.

      Oxidation

    • C.

      Reduction

    • D.

      Displacement 

    Correct Answer
    A. Neutralisation reaction
    Explanation
    When magnesium hydroxide reacts with hydrochloric acid, it forms magnesium chloride and water. This type of reaction is known as a neutralization reaction because an acid and a base react to form a neutral product, which is water in this case. The hydroxide ions from the magnesium hydroxide combine with the hydrogen ions from the hydrochloric acid to form water, while the remaining ions combine to form magnesium chloride. This reaction results in the neutralization of the acidic and basic properties, hence the term "neutralization reaction".

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