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Air is regarded as a mixture because...

Air is regarded as a mixture because

A

its pressure may vary

B

its temperature may change

C

its volume changes under different conditions

D

its composition may vary

Text Solution

Verified by Experts

The correct Answer is:
D
its composition may vary
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Knowledge Check

  • Air is a mixture of

    A
    nitrogen, oxygen, methane, carbon dioxide
    B
    notrogen, oxygen, carbon dioxide, water vapours
    C
    nitrogen, carbon dioxide, oxygen, carbon monoxide
    D
    notrogen, oxygen, carbon monoxide, water vapours.

  • Air is a mixture of

    A
    exhaustible resource
    B
    inexhaustible resource
    C
    perishable resource
    D
    both b and c

  • Air is a homogeneous mixture of gases which also contains argon and nitrogen which are used for filling electric bulbs. But air is not filled in electric bulbs because

    A
    the active component of air oxidises the filament.
    B
    the boiling point of air is greater than that of argon or nitrogen.
    C
    air has impurities like dust particles.
    D
    air exerts more pressure.

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    Why is air sometimes regarded as heterogeneous mixture ?

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    Bacteria were regarded to be plants because

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