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Give two reasons to justify- (a) Water...

Give two reasons to justify-
(a) Water at room temperaure is a liquid
(b) an iron almirah is a solid at room temperature.

Text Solution

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(a) The two general properties of liquids are that liquids have 'a fixed volume' but 'no fixed shape'. Now, water is a liquid at room temperature because :
(i) water has a fixed volume (which does not change on changing its container).
(ii) water has no fixed shape (it takes the shape of the container in which it is kept).
(b) The two general properties of solids are that solids have 'a fixed shape' and 'a fixed volume'. An almirah is a solid at room temperature because :
(i) an almirah has a fixed shape (which cannot be changed by pressing it with hands).
(ii) an almirah has a fixed volume (which depends on the dimensions according to which it is made).
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Knowledge Check

  • Which is solid at room temperature

    A
    CO
    B
    `CO_(2)`
    C
    `SiO_(2)`
    D
    `OF_(2)`

  • Which metal is a liquid at room temperature ?

    A
    Hg
    B
    K
    C
    Na
    D
    Ti

  • The Halogen which is solid at room temperature is

    A
    `I_(2)`
    B
    `Br_(2)`
    C
    `Cl_(2)`
    D
    `F_(2)`

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