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Which of the following is not a physical...

Which of the following is not a physical change?

A

Boiling of water to give water vapours

B

Melting of ice to give water

C

Dissolution of salt in water

D

Combustion of Liquefied Petroleum Gas (LPG)

Text Solution

Verified by Experts

The correct Answer is:
D
LPG is a mixture of gases like propane `(C_(3)H_(8))` and butane `(C_(4)H_(10))` is liquefied form. These are chemical substance and undergo combustion upon heating with air or oxygen. It is therefore, a chemical change.
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Knowledge Check

  • Which among the following is not a physical change?

    A
    Evaporation of petrol
    B
    Burning of liquified petroleum gas (LPG)
    C
    Heating of an iron rod to red hot.
    D
    Sublimation of solid ammonium chloride

  • Which of the following is a physical change?

    A
    Melting of ice
    B
    Milk is set into curd
    C
    Ripening of fruits
    D
    Grapes get fermented

  • Which of the following is a physical change ?

    A
    Dissolution of lime in water.
    B
    Dissolution of `CO_(2)` in water at high pressure.
    C
    Dissolution of concentrated acid in water.
    D
    Electrolysis of water.

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