Home/ Batra Sahab/Answers
  1. Asked: In:

    The compound FeS is not attracted by magnet because

    Batra Sahab

    (d) FeS does not possess magnetic properties. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-2/

    (d) FeS does not possess magnetic properties.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-2/

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    • 9
  2. Asked: In:

    Ordinary starch stirred with cold water will result in a

    Batra Sahab

    (a) Starch forms a colloidal solution in water. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-2/

    (a) Starch forms a colloidal solution in water.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-2/

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  3. Asked: In:

    Which of the following is not a colloid?

    Batra Sahab

    (b) Sulphur forms a true solution in CS2. Others form colloidal solution. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-2/

    (b) Sulphur forms a true solution in CS2. Others form colloidal solution.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-2/

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  4. Asked: In:

    The first atomic theory was put forward by

    Batra Sahab

    (b) John Dalton put forward the first atomic theory. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-3/

    (b) John Dalton put forward the first atomic theory.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-3/

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    • 25
  6. Asked: In:

    The relative mass of a molecule is expressed in

    Batra Sahab

    (c) Relative mass of a molecule is expressed in atomic mass units. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-3/

    (c) Relative mass of a molecule is expressed in atomic mass units.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-3/

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    • 9