Chemistry Quiz: Can You Pass This Chemical Reaction Test?

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  • 1/10 Questions

    The number of substance present in binary solution is _____

    • One
    • Two
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About This Quiz

Challenge your understanding of chemical solutions with this engaging Chemistry Quiz. Test your knowledge on solution types, solubility, and properties of mixtures. Perfect for students looking to assess their grasp on fundamental chemistry concepts.

Chemistry Quiz: Can You Pass This Chemical Reaction Test? - Quiz

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  • 2. 

    When sunlight passes through window of the classrooms its path is visible. This is due to _______of light.

    • Reflection

    • Scattering

    Correct Answer
    A. Scattering
    Explanation
    When sunlight passes through the window of the classrooms, its path is visible because of scattering of light. Scattering occurs when light interacts with particles or irregularities in the medium through which it is passing. In this case, the particles in the air inside the classroom cause the sunlight to scatter, making its path visible. Reflection, on the other hand, occurs when light bounces off a surface without changing its direction significantly, which is not the case here.

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  • 3. 

    The mixture of gases used by deep sea divers is _______

    • Helium-oxygen

    • Oxygen-nitrogen

    Correct Answer
    A. Helium-oxygen
    Explanation
    Deep sea divers use a mixture of gases that includes helium and oxygen. This is because at great depths, the pressure increases significantly, and breathing regular air can lead to nitrogen narcosis, a condition that impairs judgment and can be very dangerous. By using a mixture of helium and oxygen, divers can avoid nitrogen narcosis and safely explore deep underwater environments.

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  • 4. 

    If two liquids are mutually soluble, they are called _______ liquids.

    • Miscible

    • Immiscible

    Correct Answer
    A. Miscible
    Explanation
    When two liquids are mutually soluble, it means that they can mix together in any proportion, forming a homogeneous solution. This property is known as miscibility. Therefore, the correct answer is "miscible."

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  • 5. 

    Solution that contains water as the solvent is called aqueous solution. If carbon disulphide is a solvent in a given solution, then the solution is called ______

    • Aqueous solution

    • Non aqueous solution

    Correct Answer
    A. Non aqueous solution
    Explanation
    If carbon disulphide is the solvent in a given solution, then the solution is called a non-aqueous solution. Aqueous solutions are those that contain water as the solvent, while non-aqueous solutions are those that have solvents other than water. Since carbon disulphide is not water, it falls under the category of non-aqueous solutions.

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  • 6. 

    In an endothermic process, solubility increases with _________ in temperature.

    • Increase

    • Decrease

    Correct Answer
    A. Increase
    Explanation
    In an endothermic process, solubility increases with an increase in temperature. This is because endothermic processes absorb heat from the surroundings, and increasing the temperature provides more energy for the solute particles to break their bonds and dissolve in the solvent. As a result, the solute particles become more dispersed in the solvent, leading to an increase in solubility. Conversely, in an exothermic process, solubility decreases with an increase in temperature, as the excess heat released reduces the solute's ability to dissolve in the solvent.

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  • 7. 

    Solubility of common salt in 100g water is 36g. If 20g of salt is dissolved in it how much more is required to attain saturation?

    • 36 g of salt

    • 10 g of salt

    • 6 g of salt

    • 16 g of salt

    Correct Answer
    A. 16 g of salt
    Explanation
    The solubility of common salt in 100g of water is 36g. This means that at that temperature and pressure, 100g of water can dissolve a maximum of 36g of salt. If 20g of salt is already dissolved in the water, then 16g more is required to reach the saturation point (36g - 20g = 16g).

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  • 8. 

    Earth soil cannot store more nitrogen than it can hold. Hence earth soil is referred to be in a state of _________.

    • Saturation

    • Unsaturation

    Correct Answer
    A. Saturation
    Explanation
    The correct answer is saturation. Saturation refers to a state where a substance or material has reached its maximum capacity or limit. In the context of the question, it means that the earth soil has already absorbed and stored the maximum amount of nitrogen it can hold. This implies that the soil cannot store any more nitrogen and is already saturated with it.

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  • 9. 

    The particles in various forms are visible only under ultramicroscope. A solution containing such particles is called __________

    • True solution

    • Colloidal solution

    Correct Answer
    A. Colloidal solution
    Explanation
    Colloidal solution is the correct answer because it refers to a solution in which particles of one substance are dispersed evenly throughout another substance, forming a stable mixture. These particles are larger than those found in true solutions, making them visible under an ultramicroscope. In a colloidal solution, the particles do not settle out over time and can be observed due to the Tyndall effect, where light is scattered by the particles.

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  • 10. 

    A true solution is a homogeneous mixture of solute and solvent. Chalk powder in water is a heterogenous mixture. Is it a true solution?

    • No. it is not a true solution. It is called Suspension.

    • Yes. it is a true solution..

    • No. it is not a true solution. It is called Colloid.

    • No. it is a true solution.

    Correct Answer
    A. No. it is not a true solution. It is called Suspension.
    Explanation
    The given explanation is correct. A true solution is a homogeneous mixture where the solute particles are evenly distributed throughout the solvent. In the case of chalk powder in water, the particles of chalk are not evenly distributed and can be seen as a separate phase, making it a heterogeneous mixture known as a suspension. Therefore, it is not a true solution.

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  • Mar 20, 2023
    Quiz Edited by
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  • Dec 02, 2013
    Quiz Created by
    Padasalai10S
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