Which of the following involves fractional distillation?
Which of the following involves fractional distillation?
The correct option is B separation of constituents from crude petroleum
- Process of fractional distillation is used to separate a miscible liquid mixture. It is used in separating liquids having boiling points close to one another. In fractional distillation, the experimental setup is complex consisting of complex apparatus and a fractionating column.
- The upward movement of high boiling liquid is obstructed by fractionating column. When its vapor condenses, the energy released is taken up by low boiling liquid vapors which readily move upward.
- The liquid with a low boiling point will distill first.
So, the separation of constituents from liquified air and separation of constituents from crude petroleum can be separated by the means of fractional distillation.
separation of carbon tetrachloride from water: carbon tetrachloride and water are immiscible liquids that can be separated by using a separating funnel. No concept of close boiling points is involved here so fractional distillation cannot be used.
separation of naphthalene from common salt: naphthalene can be separated from common salt by the process of sublimation. The substance which sublimes first will get vaporized into gas directly without entering into the intermediate liquid stage. No concept of close boiling points is involved here so fractional distillation cannot be used.
Final answer: The separation of constituents from liquified air and separation of constituents from crude petroleum can be separated by the means of fractional distillation.
Therefore the correct option is A and B
separation of constituents from crude petroleum
- Process of fractional distillation is used to separate a miscible liquid mixture. It is used in separating liquids having boiling points close to one another. In fractional distillation, the experimental setup is complex consisting of complex apparatus and a fractionating column.
- The upward movement of high boiling liquid is obstructed by fractionating column. When its vapor condenses, the energy released is taken up by low boiling liquid vapors which readily move upward.
- The liquid with a low boiling point will distill first.
So, the separation of constituents from liquified air and separation of constituents from crude petroleum can be separated by the means of fractional distillation.
separation of carbon tetrachloride from water: carbon tetrachloride and water are immiscible liquids that can be separated by using a separating funnel. No concept of close boiling points is involved here so fractional distillation cannot be used.
separation of naphthalene from common salt: naphthalene can be separated from common salt by the process of sublimation. The substance which sublimes first will get vaporized into gas directly without entering into the intermediate liquid stage. No concept of close boiling points is involved here so fractional distillation cannot be used.
Final answer: The separation of constituents from liquified air and separation of constituents from crude petroleum can be separated by the means of fractional distillation.
Therefore the correct option is A and B
