How Much You Know About Acids And Alkalis?

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Doctorwhofans8
D
Doctorwhofans8
Community Contributor
Quizzes Created: 1 | Total Attempts: 14,004
| Attempts: 14,004
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/10 Questions

    Lemon Juice is an _______

Please wait...
About This Quiz

Are you a chemistry student? How much you know about acids and alkalis? Think you can pass a quiz? An acid is a substance that forms a solution with a pH value of less than 7, whereas an alkaline substance has a PH level higher than 7. These are some of the things that we covered on substances. You have to answer some questions and pick the option that you think is correct. Make sure to read all the questions carefully before answering the question. Keep learning and have fun!

How Much You Know About Acids And Alkalis? - Quiz

Quiz Preview

  • 2. 

    pH paper, universal indicator and red cabbage indicator can all be used to:

    • Determine whether something is corrosive or not

    • Determine whether something is an acid or alkali

    • Determine whether something is an element or not

    • Determine whether something is a mixture or compound

    Correct Answer
    A. Determine whether something is an acid or alkali
    Explanation
    pH paper, universal indicator, and red cabbage indicator can be used to determine whether something is an acid or alkali. These indicators change color in the presence of acidic or alkaline substances, allowing us to identify the nature of the substance being tested. By comparing the color change to a reference chart, we can determine whether the substance is acidic or alkaline.

    Rate this question:

  • 3. 

    In a neutral solution, the universal indicator turn which color?

    • Red

    • Blue

    • White

    • Green

    Correct Answer
    A. Green
    Explanation
    In a neutral solution, the universal indicator turns green. This is because the universal indicator is a mixture of different pH indicators that change color at different pH levels. Green indicates a pH level around 7, which is considered neutral.

    Rate this question:

  • 4. 

    Can you pick which of the following contains acid?

    • Detergent

    • Orange juice

    • Water

    • Ammonia

    Correct Answer
    A. Orange juice
    Explanation
    Orange juice contains acid because it is a citrus fruit juice, which naturally contains citric acid. This acid gives orange juice its tart and tangy taste.

    Rate this question:

  • 5. 

    What is the pH value of pure, unadulterated water?

    • 1

    • 5

    • 12

    • 7

    Correct Answer
    A. 7
    Explanation
    The pH value of pure, unadulterated water is 7. This is because water is considered neutral, meaning it is neither acidic nor alkaline. A pH value of 7 indicates a balance between the concentration of hydrogen ions (acidic) and hydroxide ions (alkaline) in the water.

    Rate this question:

  • 6. 

    pH paper is put in a solution, which turns red.  What is this?

    • A strong alkali

    • A weak acid

    • A strong acid

    • A weak alkali

    Correct Answer
    A. A strong acid
    Explanation
    The pH paper turning red indicates that the solution is highly acidic. This suggests that it has a low pH value, typically below 7. A strong acid is a substance that completely dissociates in water, releasing a high concentration of hydrogen ions (H+). This leads to a highly acidic solution. Therefore, the correct answer is a strong acid.

    Rate this question:

  • 7. 

    Coke is a alkali

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement "Coke is an alkali" is false. Coke is a solid carbonaceous material that is derived from coal. It is primarily composed of carbon and does not possess the properties of an alkali, which is a type of base that can dissolve in water and produce hydroxide ions.

    Rate this question:

  • 8. 

    Which of the following makes a solution acidic?

    • Presence of OH ions

    • Presence of water

    • Presence of H ions

    • Presence of metal hydroxide

    Correct Answer
    A. Presence of H ions
    Explanation
    The presence of H ions makes a solution acidic because H ions are responsible for the release of hydrogen ions (H+) in a solution. These hydrogen ions increase the concentration of H+ ions in the solution, resulting in a low pH value and an acidic environment.

    Rate this question:

  • 9. 

    Which of the following substance is alkaline?

    • Water

    • Lime juice

    • Baking powder

    • None of the above

    Correct Answer
    A. Baking powder
    Explanation
    Among the options provided, baking powder is alkaline. Baking powder is a leavening agent used in baking, and it typically contains an alkaline substance, such as sodium bicarbonate (baking soda), which reacts with an acidic ingredient (like vinegar or lemon juice) to produce carbon dioxide gas, causing baked goods to rise. This reaction is what makes baking powder alkaline. Water and lime juice are not alkaline substances.

    Rate this question:

Quiz Review Timeline (Updated): Jul 16, 2024 +

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

  • Current Version
  • Jul 16, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 03, 2012
    Quiz Created by
    Doctorwhofans8
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.