Which of the following statement represents the fractional distillation process?

Using the boiling point as a guide when mixing one sample with another

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Separating components from a mixture using heat

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Purifying a sample that is contaminated with minerals

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None of these

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Solution

The correct option is B Separating components from a mixture using heat
Fractional distillation is the separation of a mixture into its parts, or fractions, separating chemical compounds by their boiling point by heating them to a temperature at which one or more fractions of the compound will vaporize. It uses the boiling point as a guide while separating one sample from another.

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Fractional distillation is the separation of a mixture of miscible liquids into its component parts based on the difference in their boiling points. Based on this information, fractional distillation is a __________ process.

Q. The method that can be used to separate a liquid from a mixture of miscible liquids with different boiling points is ___________ distillation.

A and B are miscible liquids and they combine to form a mixture. This mixture can be separated by method C. The boiling point of A is $78^{\circ} C$ and that of B is $100^{\circ} C$ . Identify the process C and which of the following is the volatile component?

Q. Assertion :When 'a' mL of a 0.1 molal urea solution is mixed with another 'b' mL of 0.2 molal glucose solution, the boiling point of the solution is no different from the boiling points of the samples prior to mixing but if 'a' mL of 0.1 molal urea is mixed with 'b' mL of 0.1 molal

H F

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Fractional Distillation is the separation of a mixture into its component parts or fractions. This is the process of separation of chemical compounds by their boiling point, the mixture is heated to a temperature at which one or more fractions (component parts) will vaporize. Generally the component parts boil at less than 25°C from each other under a pressure of one atmosphere. It is a special type of distillation.

Air is a homogeneous mixture of 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases like Helium, Krypton, Nitrogen dioxide etc.

Consider three gases Oxygen, Nitrogen and Argon whose boiling points are -183, -196, -186 degree celsius, that are to be separated from air using Fractional Distillation.

The air is compressed by increasing the pressure and is then cooled by decreasing the temperature to get liquid air. This liquid air is allowed to warm-up slowly in a fractional distillation column, where gases get separated at different heights depending upon their boiling points. As the height of tower increases the temperature increases.

State True of False:

Statement: The temperature is low at the base of the Fractional Distillation.

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