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Assertion: When a bottle of cold carbonated drink is opened, a slight fog forms around the opening.
Reason: Adiabatic expansion of the gas causes lowering of temperature and condersation of water vapours.
A. If both assertion and reason are true and the reason is correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true, but the reason is false.
D. If assertion is false but the reason is true

1 Answer

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Best answer
Correct Answer - A
When a bottle of cold carbonate drink is opened. Then adiabatic expansion of gas evolved is done. Due to this temperature of gas decreases. It condenses the water vapour, which forms a slight fog around the opening.

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