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Q.

When carbon dioxide at room temperature(20°C)  and at a pressure of 70 times the atmospheric pressure is suddenly allowed to expand through a nozzle, it solidifies and called it is dry ice then which of the following statements are correct

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a

Dry ice is used for transportation of fruits and vegetables for longer distances as it does not produce moisture.

b

The process involved in the formation of dry ice is called sublimation

c

It is used to enhance the growth of plant

d

All

answer is D.

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Detailed Solution

The gas directly converted into solid is called sublimation or deposition.

Dry ice is absorb the moisture.

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