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Is Matter Aroun...

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  • Question 1
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    Which of the following statement are false regarding colloidal solution?

    P. Colloidal solutions are homogeneous in nature.

    Q. Colloidal particles pass through an ordinary filter paper.

    R. Colloidal particles can be seen with naked eyes.

    S. Colloidal particles do not settle under gravity.

  • Question 2
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    The particles of a suspension will be of size ___.

  • Question 3
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    Identify the pure substance containing only one type of element.

  • Question 4
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    A colloidal system is a two-phase system. Point out which of the following combination can not be considered a colloidal system?

  • Question 5
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    Select the correct statements.

  • Question 6
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    Aqueous solution of a mixture contains $$LiCl, CuCl, NaCl$$ and $$AlCl_3$$. This is shaken with ether. What is/are left in water?

  • Question 7
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    A student was given a mixture of sulphur and iron fillings. He was told to heat the mixture and observe. What will be the colour of the compound formed?

  • Question 8
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    A compound can be a mixture of:

  • Question 9
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    Which of the following compounds do not exist?

  • Question 10
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    Find out a separating technique to separate the following mixture and write a note on it.

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