Separation of Components of a Mixture

Which of the following contain five molecules of water of crystallisation?

On heating camphor in a porcelain dish it got mixed in air without melting. This phenomenon is known as

A suitable method for the separation of pure naphthalene from sandy naphthalene is:

At a refinery, petroleum is separated into several components by a process called fractional distillation using a fractionating column. Which of the following statement is incorrect about the process?
(I) Temperature decreases from the bottom to the top of the column
(II) At each level in the column only one compound is collected
(III) The fraction collecting at the top of the column is less volatile
(IV) The fraction with the highest boiling point condenses first and gets collected near the base of the fractionating column.

Components present in air can be separated by

Which method is used to separate cream from milk:

CASE: Separating the components of seawater

Student A is given the task of designing an experiment to separate and collect the components of a sample of seawater, $\mathrm{NaCl}$ (aq). They are provided with standard laboratory apparatus. Following the experiment, the student recorded the following data for analysis.

The initial volume of seawater$=200.00 {\mathrm{cm}}^3$
The volume of water recovered$=196 {\mathrm{cm}}^3$
Mass of salt $\mathrm{NaCl}$ recovered$= 68.8 \mathrm{g}$

The student in their research for a laboratory report discovered the following facts.

Student B, in the same class, only managed to collect a sample of the solid sodium chloride. With the technique chosen by this student, the water is lost to the surroundings. What is the technique used by student B?

CASE: Separating the components of seawater

Student A is given the task of designing an experiment to separate and collect the components of a sample of seawater, $\mathrm{NaCl}$ (aq). They are provided with standard laboratory apparatus. Following the experiment, the student recorded the following data for analysis.

The initial volume of seawater$=200.00 {\mathrm{cm}}^3$
The volume of water recovered$=196 {\mathrm{cm}}^3$
Mass of salt $\mathrm{NaCl}$ recovered$= 68.8 \mathrm{g}$

The student in their research for a laboratory report discovered the following facts.

All the water could not be collected during the separation process. Which of the following is not a reason for this?

CASE: Separating the components of seawater

Student A is given the task of designing an experiment to separate and collect the components of a sample of seawater, $\mathrm{NaCl}$ (aq). They are provided with standard laboratory apparatus. Following the experiment, the student recorded the following data for analysis.

The initial volume of seawater$=200.00 {\mathrm{cm}}^3$
The volume of water recovered$=196 {\mathrm{cm}}^3$
Mass of salt $\mathrm{NaCl}$ recovered$= 68.8 \mathrm{g}$

The student in their research for a laboratory report discovered the following facts.

How can one obtain the water from the seawater?

Which technique is used to separate fats from milk?

From which separation method we can obtain coloured component (dye) from blue/black ink?

Water that flows through rivers may have compounds dissolved in it that make it unsafe to drink. Which technique could be used to remove the dissolved substances and obtain pure water?

The mixture of salt and camphor can be separated by the _____ method.

One common method used to separate dyes is: