Swetha filled a glass of water with ice cubes. After a few minutes, she observed water droplets outside the glass. Identify the correct change in state.

Ice --> water

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Water vapour --> water

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Water --> water vapour

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Ice --> water --> water vapour

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Solution

The correct option is B Water vapour --> water

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Similar questions

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Q. Sunita dropped some ice cubes into a glass tumbler. After a while she saw two changes. Which of the following statements tell you what she might have observed?
A. The ice melted which is a physical change.
B. She saw droplets of water forming on the outside of the glass tumbler due to evaporation.
C. She saw droplets of water forming on the outside of the glass tumbler due to water vapour in the air condensing on it.
D. Condensation of water vapour is a physical change.
E. Formation of droplets is a chemical change as a new substance is formed.
F. The melting ice takes up heat from the surroundings.

(a) A, C, E, F are true.
(b) A, B, C, D are true.
(c) C, D, E, F are true.
(d) A, C, D, F are true.

A glass filled with ice cubes was placed on a table. After a while, water droplets appeared on the glass surface.

Which of these sentences is/ are TRUE?
i) This phenomenon is known as condensation.
ii) This proves that water vapour is present in the air.
iii) This is also observed when a hot object vapour in the open.

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