Chemistry Quiz On Chemical Changes! Trivia

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  • 1/10 Questions

    Which of these is not a constituent of Sodium hydroxide?

    • Hydrogen 
    • Sodium 
    • Oxygen 
    • Calcium 
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About This Quiz

Chemical Changes occur as a result of combination of two substances through chemical reactions to form new substances. These changes occur after there is a reaction which may gives out heat or absorb heat. Chemical change exists in many ways which are seen or detected during daily activities. Take this quiz on Chemical changes!

Chemistry Quiz On Chemical Changes! Trivia - Quiz

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  • 2. 
    What is the measurement of temperature? - ProProfs

    What is the measurement of temperature?

    • Kelvin 

    • Minutes 

    • Ohm

    • Second 

    Correct Answer
    A. Kelvin 
    Explanation
    Kelvin is the correct answer because it is the unit of measurement for temperature in the International System of Units (SI). It is based on the absolute zero point, which is the lowest possible temperature at which all molecular motion ceases. The Kelvin scale is commonly used in scientific and engineering applications where precise temperature measurements are required.

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  • 3. 
    What process occurs during the production of yogurt? - ProProfs

    What process occurs during the production of yogurt?

    • Fermentation 

    • Distillation 

    • Crystallisation 

    • Decantation 

    Correct Answer
    A. Fermentation 
    Explanation
    During the production of yogurt, the process that occurs is fermentation. Fermentation is a metabolic process where microorganisms, such as bacteria or yeast, convert sugars into other compounds, such as acids or alcohol, in the absence of oxygen. In the case of yogurt production, specific strains of bacteria, such as Lactobacillus bulgaricus and Streptococcus thermophilus, are added to milk. These bacteria ferment the lactose in the milk, converting it into lactic acid. This process gives yogurt its characteristic tangy taste and thick texture.

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  • 4. 
    Which of these is the reaction where heat is absorbed? - ProProfs

    Which of these is the reaction where heat is absorbed?

    • Endothermic reaction 

    • Exothermic reaction 

    • Reversible reaction 

    • Catalytic reaction 

    Correct Answer
    A. Endothermic reaction 
    Explanation
    An endothermic reaction is a chemical reaction that absorbs heat from its surroundings. In this type of reaction, the energy of the products is greater than the energy of the reactants, resulting in the absorption of heat. This causes the surroundings to cool down as the reaction proceeds.

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  • 5. 
    Which of these is not involved in acid/base reaction?  - ProProfs

    Which of these is not involved in acid/base reaction? 

    • Base 

    • Acid 

    • Water 

    • Hydrocarbon

    Correct Answer
    A. Hydrocarbon
    Explanation
    Hydrocarbons are organic compounds composed of only carbon and hydrogen atoms. They do not have the ability to donate or accept protons, which is a characteristic of acids and bases involved in acid/base reactions. Therefore, hydrocarbons are not involved in acid/base reactions.

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  • 6. 
    Which of these is odd?  - ProProfs

    Which of these is odd? 

    • Burning of paper 

    • Rusting of metals 

    • Decomposition of substance 

    • Filtration 

    Correct Answer
    A. Filtration 
    Explanation
    Filtration is the odd one out in this group because it is the only process that involves the separation of solid particles from a liquid or gas by passing it through a porous material. Burning of paper, rusting of metals, and decomposition of substances all involve chemical reactions or breakdown of materials, whereas filtration is a physical process of separating particles based on their size or solubility.

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  • 7. 
    Which of these causes rusting of metals? - ProProfs

    Which of these causes rusting of metals?

    • Nitrogen 

    • Oxygen 

    • Calcium 

    • Hydrogen 

    Correct Answer
    A. Oxygen 
    Explanation
    Oxygen causes rusting of metals because it reacts with the metal surface and forms metal oxides. This reaction, known as oxidation, occurs when oxygen molecules come into contact with moisture on the metal, leading to the formation of rust. Oxygen is highly reactive and readily combines with metal atoms, causing them to corrode and deteriorate over time.

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  • 8. 
    Which of these is true about Chemical change? - ProProfs

    Which of these is true about Chemical change?

    • It requires heat always 

    • No substance formed 

    • Easily reversible 

    • Not easily reversible 

    Correct Answer
    A. Not easily reversible 
    Explanation
    Chemical change refers to a process in which substances undergo a transformation, resulting in the formation of new substances with different properties. Unlike physical changes, chemical changes are not easily reversible because they involve the breaking and forming of chemical bonds. Once a chemical change occurs, it is difficult to revert the substances back to their original form, making the statement "Not easily reversible" true.

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  • 9. 
    Which of these is not a physical process?  - ProProfs

    Which of these is not a physical process? 

    • Fractional distillation 

    • Filtration 

    • Decantation

    • Sieving 

    Correct Answer
    A. Fractional distillation 
    Explanation
    Fractional distillation is not a physical process because it involves the separation of a mixture based on the differences in boiling points of its components. It requires heating the mixture and collecting the vapor that is produced at different temperatures. This process is a form of distillation, which is a chemical process rather than a physical one. Physical processes involve changes in physical properties such as size, shape, or state of matter, while chemical processes involve changes in chemical composition.

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  • 10. 
    Which one do you like? - ProProfs

    Which one do you like?

    • Option 1

    • Option 2

    • Option 3

    • Option 4

    Correct Answer
    A. Option 1

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 17, 2019
    Quiz Created by
    Gregorynaomi
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