Which of the following statements is not correct about the process shown above?

The above process takes place in the presence of only heat for all other substances.

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The solid used in the process has very little force of attraction between their molecules.

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On heating the inter-molecular force of attraction is overcome.

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None of these.

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Solution

The correct option is A
The above process takes place in the presence of only heat for all other substances.

When solids are heated the intermolecular force of attraction between the molecules are broken and molecules are free to move and are subjected to sublimation.

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