Can You Identify Acids And Bases?

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Devrv
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Quizzes Created: 36 | Total Attempts: 12,113
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  • 1/10 Questions

    What does pH measure?

    • The amount of H+ ions in a solution
    • The amount of acid molecules in a solution
    • The electron shell configuration of the solution
    • What colour the solution is
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About This Quiz

Different acids and bases have different have different colors and the different kinds of reactions they undergo. HCl, a popular acid is colorless in nature therefore can u identify other acids and bases?

Can You Identify Acids And Bases? - Quiz

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  • 2. 

    Which of the following statements is true concerning acids and bases

    • Acids and bases don't react with each other

    • Acids mixed with bases neutralize each other

    • Acids mixed with bases make stronger bases

    • Acids mixed with bases make stronger acids

    Correct Answer
    A. Acids mixed with bases neutralize each other
    Explanation
    When acids and bases are mixed together, they undergo a chemical reaction called neutralization. During this reaction, the acidic and basic properties of the substances are neutralized, resulting in the formation of a salt and water. This is why the statement "acids mixed with bases neutralize each other" is true.

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  • 3. 

    If a substance has more OH- ions it is considered a ___________ ?

    • Acid

    • Base

    • Neutral

    • PH

    Correct Answer
    A. Base
    Explanation
    If a substance has more OH- ions, it is considered a base. This is because bases are substances that release hydroxide ions (OH-) in water. These hydroxide ions then react with hydrogen ions (H+) to form water. Therefore, a substance with more OH- ions indicates a higher concentration of hydroxide ions, which classifies it as a base.

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  • 4. 

    Which is the correct set of acid properties

    • Sour taste, corrosive, change litmus from red to blue

    • Sour taste, corrosive, change litmus from blue to red

    • Sweet taste, slippery, change litmus from blue to red

    • Sour taste, slippery, change litmus from blue to red

    Correct Answer
    A. Sour taste, corrosive, change litmus from blue to red
    Explanation
    The correct answer is "sour taste, corrosive, change litmus from blue to red." Acids typically have a sour taste, are corrosive (meaning they can cause damage or destruction), and they change the color of litmus paper from blue to red.

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  • 5. 

    Adding an Acid to a Base is called

    • Reaction

    • Displacement

    • PH

    • Neutralisation

    Correct Answer
    A. Neutralisation
    Explanation
    When an acid is added to a base, a neutralization reaction occurs. This reaction results in the formation of water and a salt. The acid donates hydrogen ions (H+) to the base, which accepts these ions. This process neutralizes the acidic and basic properties, resulting in a solution that is neither acidic nor basic, but rather neutral. Therefore, the correct answer is neutralization.

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  • 6. 

    When an acid reacts with a base it will always produce:

    • Hydrogen Gas + Salt

    • Carbon Dioxide + Water + Salt

    • Salt + Water

    • Nothing

    Correct Answer
    A. Salt + Water
    Explanation
    When an acid reacts with a base, it will always produce salt and water. This is because acids and bases neutralize each other, resulting in the formation of a salt and water as the products. The salt is formed from the combination of the positive ions from the base and the negative ions from the acid. Water is also produced as a result of this reaction. Therefore, the correct answer is salt + water.

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  • 7. 

    Complete the reaction: Hydrocholric Acid + Magnesium -> Hydrogen Gas + _____________

    • Magnesium Hydride

    • Hydrogen Magnesium

    • Magnesium Chloride

    • Dihydrogen Chloride

    Correct Answer
    A. Magnesium Chloride
    Explanation
    When hydrochloric acid reacts with magnesium, it forms magnesium chloride and hydrogen gas. This is a typical example of a single displacement reaction, where the more reactive magnesium displaces hydrogen from the hydrochloric acid. Magnesium chloride is formed as a result of the reaction, while hydrogen gas is released.

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  • 8. 
    Examine the image below of colour changes using universal indicator: What colour indicates a very strong acid? - ProProfs

    Examine the image below of colour changes using universal indicator: What colour indicates a very strong acid?

    • Yellow

    • Orange

    • Purple

    • Green

    Correct Answer
    A. Orange
    Explanation
    Orange indicates a very strong acid. This is because universal indicator is a pH indicator that changes color based on the acidity or alkalinity of a solution. Orange color indicates a pH level of around 1-2, which is highly acidic. Therefore, orange is the correct answer for a very strong acid.

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  • 9. 
    Examine the image below of colour changes using universal indicator: Which colour indicates a very strong Base? - ProProfs

    Examine the image below of colour changes using universal indicator: Which colour indicates a very strong Base?

    • Yellow

    • Orange

    • Purple

    • Green

    Correct Answer
    A. Purple
    Explanation
    In the image, purple is shown as the color that indicates a very strong base. This is because universal indicator changes color based on the pH level of a substance, with purple indicating a high pH level. In the pH scale, a high pH level corresponds to a strong base, so the purple color suggests that the substance being tested is a very strong base.

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  • 10. 

    What are some of the disadvantages of using an indicator?

    • Colour changes may not be easy to see

    • Colour change doesn't always happen

    • Different solutions have different colour changes

    • Very expensive

    Correct Answer
    A. Colour changes may not be easy to see
    Explanation
    The use of an indicator may have the disadvantage that the color changes associated with it may not be easily visible. This can make it difficult to accurately determine the endpoint or the completion of a reaction.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 19, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 17, 2019
    Quiz Created by
    Devrv
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