Matter and Its Composition Class 10
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Questions and Answers

मैटर के मात्रा के नाप के लिए कौनो इकाई होला?

  • ग्राम (correct)
  • मिलीलीटर
  • किलोग्राम
  • क्यूबिक सेंटीमीटर
  • कहाँ के मैटर के तीन रूप होला?

  • प्लास्टिक, कागज, और लोहा
  • पानी, हवा, और मिट्टी
  • धातु, पत्थर, और पानी
  • جامद, तरल, और गैस (correct)
  • कहाँ के density में मात्रा प्रति इकाई आयतन होला?

  • न्यूटन प्रति क्यूबिक सेंटीमीटर
  • किलोग्राम प्रति लीटर
  • ग्राम प्रति मिलीलीटर
  • ग्राम प्रति क्यूबिक सेंटीमीटर (correct)
  • ELEMENT के परिभाषा के अनुसार, कौनो सही होला?

    <p>एक ही प्रकार के परमाणु से बना होला</p> Signup and view all the answers

    कहाँ के मिश्रण के प्रकार होला?

    <p>होमोजेनियस और हेटरोजेनियस</p> Signup and view all the answers

    फिल्ट्रेशन के माध्यम से कौनो पृथक किया जा सकता होला?

    <p>सॉलिड और लिक्विड</p> Signup and view all the answers

    कहाँ के पृथक के माध्यम से एक शुद्ध पदार्थ प्राप्त होला?

    <p>प्युरिफिकेशन</p> Signup and view all the answers

    कहाँ के वजन के माध्यम से किया जा सकता होला?

    <p>न्यूटन से</p> Signup and view all the answers

    कहाँ के मिश्रण के प्रकार में सारा पदार्थ समान होला?

    <p>होमोजेनियस</p> Signup and view all the answers

    What is the fundamental characteristic of matter that distinguishes it from energy?

    <p>It occupies space and has mass</p> Signup and view all the answers

    What is the term for the smallest unit of matter that still retains the properties of an element?

    <p>Atom</p> Signup and view all the answers

    What is the process by which two or more atoms share electrons to form a new substance?

    <p>Molecular formation</p> Signup and view all the answers

    Which of the following is an example of a compound?

    <p>Water (H2O)</p> Signup and view all the answers

    What is the term for the amount of mass per unit volume of a substance?

    <p>Density</p> Signup and view all the answers

    What is the outermost region of an atom where electrons are found?

    <p>Electron shell</p> Signup and view all the answers

    What is the change in a substance from one state to another by changing its temperature and pressure?

    <p>Phase change</p> Signup and view all the answers

    What are the particles that make up the nucleus of an atom?

    <p>Protons and neutrons</p> Signup and view all the answers

    What is the process by which one or more substances are changed into new substances?

    <p>Chemical reaction</p> Signup and view all the answers

    What is the term for the smallest unit of a substance that still retains its properties?

    <p>Element</p> Signup and view all the answers

    Study Notes

    Matter and Its Composition

    What is Matter?

    • Matter is anything that has mass and occupies space.
    • It can exist in three states: solid, liquid, and gas.

    Characteristics of Matter:

    • Mass: amount of matter in an object, measured in grams (g) or kilograms (kg).
    • Weight: force exerted by gravity on an object, measured in newtons (N).
    • Volume: amount of space occupied by an object, measured in cubic centimeters (cm³) or liters (L).
    • Density: mass of an object per unit volume, measured in grams per cubic centimeter (g/cm³).

    Composition of Matter:

    • Elements: substances consisting of only one type of atom, represented by symbols (e.g., H for hydrogen).
    • Compounds: substances consisting of two or more different elements, represented by formulas (e.g., H₂O for water).
    • Mixtures: physical combinations of two or more substances, which can be separated by physical methods (e.g., air, soil).

    Types of Mixtures:

    • Homogeneous Mixtures: uniform composition throughout, like sugar dissolved in water.
    • Heterogeneous Mixtures: non-uniform composition, like sand and water.

    Separation of Mixtures:

    • Filtration: separating solid particles from a liquid using a filter.
    • Decantation: separating a liquid from a solid by pouring off the liquid.
    • Distillation: separating liquids based on boiling points.

    Importance of Separation of Mixtures:

    • Purification: obtaining a pure substance from a mixture.
    • Recycling: reusing materials by separating and processing them.

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    ई प्रश्नपत्र में मैटर के बारे में जानकारी दी गई है, जिसमें मैटर के गुण, प्रकार, मिश्रण और मिश्रण के पृथक्करण के बारे में बताया गया है

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