During the fractional distillation of air, which component(s) is/are obtained in solid form when the air is compressed and cooled?
(i) Oxygen
(ii) Argon
(iii) Carbon dioxide
(iv) Nitrogen

Only (iii)

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(iii) and (iv)

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(i), (ii), and (iv)

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Only (i)

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Solution

The correct option is A Only (iii)
During the separation of components of air by fractional distillation, the air is cooled and compressed resulting in a change of state.
The components of air such as oxygen, argon, and nitrogen get converted into liquids but carbon dioxide gas directly forms a solid without passing through the liquid state. This solid is known as dry ice.

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During the fractional distillation of air, which component(s) is/are obtained in solid form when the air is compressed and cooled? (i) Oxygen (ii) Argon (iii) Carbon dioxide (iv) Nitrogen

During the fractional distillation of air, which component(s) is/are obtained in solid form when the air is compressed and cooled?
(i) Oxygen
(ii) Argon
(iii) Carbon dioxide
(iv) Nitrogen