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Questions  

Statement I : When a bottle of cold carbonated drink is opened, a slight fog forms around the opening.

Statement II : Adiabatic expansion of the gas causes lowering of temperature and condensation of water vapours.

a
If both statement I and statement II are true and statement II is the correct explanation of statement I.
b
If both statement I and statement II are true but statement II is not the correct explanation of statement I.
c
If statement I is true but statement II is false
d
If both statement I and statement II are false

detailed solution

Correct option is A

When a bottle of cold carbonated drink is opened, then adiabatic expansion of gas evolved happens. Due to this temperature of gas decrease. It condenses the water vapour, which forms a slight fog around the opening.

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