Acid-base Reaction Quiz

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Dlindo28
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  • 1/8 Questions

    Acids take in the proton (H+).

    • True
    • False
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About This Quiz

The Acid-Base Reaction Quiz assesses understanding of fundamental acid-base interactions in chemistry. It covers concepts like proton donation, conjugate acids and bases, and the role of water in acid-base reactions, crucial for students and professionals in chemistry.

Acid-base Reaction Quiz - Quiz

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  • 2. 

    A _______ base is formed once the proton is donated.

    Explanation
    A conjugate base is formed once the proton is donated. This is because when a proton is donated, the molecule or ion that loses the proton becomes negatively charged and is called the conjugate base. The conjugate base is formed as a result of the loss of the proton and is often the product of an acid-base reaction.

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  • 3. 

    Which of the following donates a proton?HCl + NaOH > H₂O +  NaCl

    • HCl

    • NaOH

    • H₂O

    • NaCl

    Correct Answer
    A. HCl
    Explanation
    HCl donates a proton in this reaction. When HCl reacts with NaOH, the HCl molecule donates a proton (H+) to the NaOH molecule. This proton transfer results in the formation of water (H₂O) and NaCl (sodium chloride).

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  • 4. 

    When a proton gets donated into water, it is accepted by that water.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    When a proton is donated into water, it means that a hydrogen ion (H+) is transferred to a water molecule. Water has the ability to accept protons due to its polar nature and the presence of lone pairs of electrons on oxygen atoms. This acceptance of protons by water is what allows it to act as a solvent for many substances and participate in various chemical reactions. Therefore, the statement "When a proton gets donated into water, it is accepted by that water" is true.

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  • 5. 

    H₃O+ is which of the following in this reaction?HCl + H₂O > H₃O+ + Cl

    • Bronsted Lowry Acid

    • Bronsted Lowry Base

    • Conjugate Acid

    • Conjugate Base

    Correct Answer
    A. Conjugate Acid
    Explanation
    In this reaction, H₃O+ is formed by accepting a proton (H+) from HCl, making it the conjugate acid. A conjugate acid is formed when a base accepts a proton. In this case, H₂O acts as the base and accepts a proton from HCl, forming H₃O+.

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  • 6. 

    Cl is which of the following in this reaction?HCl + H₂O > H₃O+ + Cl

    • Bronsted Lowry Acid

    • Bronsted Lowry Base

    • Conjugate Acid

    • Conjugate Base

    Correct Answer
    A. Conjugate Base
    Explanation
    In this reaction, Cl is the conjugate base. This is because it is the species that remains after the HCl donates a proton to water, forming the H₃O+ ion. The Cl ion has gained an electron and has a negative charge, making it the conjugate base of the acid HCl.

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  • 7. 

    HCl is which of the following in this reaction?HCl + H₂O > H₃O+ + Cl

    • Bronsted Lowry Acid

    • Bronsted Lowry Base

    • Conjugate Acid

    • Conjugate Base

    Correct Answer
    A. Bronsted Lowry Acid
    Explanation
    In this reaction, HCl donates a proton (H+) to water, forming the hydronium ion (H₃O+). According to the Bronsted-Lowry acid-base theory, an acid is a substance that donates a proton. Therefore, HCl is acting as an acid in this reaction by donating a proton to water.

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  • 8. 

    H₂O is which of the following in this reaction?HCl + H₂O > H₃O+ + Cl

    • Bronsted Lowry Acid

    • Bronsted Lowry Base

    • Conjugate Acid

    • Conjugate Base

    Correct Answer
    A. Bronsted Lowry Base
    Explanation
    In this reaction, H₂O acts as a proton acceptor by accepting a proton from HCl to form H₃O+. According to the Bronsted-Lowry theory, a base is a substance that accepts a proton, and since H₂O is accepting a proton in this reaction, it is considered a Bronsted-Lowry base.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 08, 2015
    Quiz Created by
    Dlindo28
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