Separation of Mixture of Two Immiscible Liquids

Q.

Is oil denser than water?

Q.

What will happen when we mix vegetable oil, corn syrup and water in a glass?

1. Corn syrup and the vegetable oil mix together and the water will be the bottom layer.

2. Corn syrup will be the uppermost layer, vegetable oil will be the middle layer and the water will be the bottom layer.

3. Water will be the uppermost layer, vegetable oil will be the middle layer and the corn syrup will be the bottom layer.

4. Vegetable oil will be the uppermost layer, water will be the middle layer and the corn syrup will be the bottom layer.

Q.

Which among the following apparatus is most suitable to separate a mixture of two immiscible liquids?

1. Measuring cylinder

2. Separating funnel

3. Conical flask

4. Dropper

Q.

State whether the following statement is True or False:
Oil is denser than water.

1. True

2. False

Q. is a process in which insoluble solid particles present in the liquid settle down at the bottom.

1. Decantation
2. Sedimentation
3. Threshing
4. Winnowing

Q. is a process in which insoluble solid particles present in the liquid settle down at the bottom.

1. Decantation
2. Sedimentation
3. Threshing
4. Winnowing

Q.

Kerosene and water can be seperated because they have different ________.

1. weights

2. densities

3. volumes

4. masses

Q.

Which separation technique will you apply for the separation of the following mixture?

oil from water

Q. Equal volumes of oil and water are taken in two glasses and weighed.

What is the likely outcome?

1. Oil weighs more.
2. Both oil and water weigh the same.
3. Water weighs more.
4. Water weighs less when heated.

Q.

What happens when kerosene spills in a puddle of water?

Q. Label the methods of separation B, C, and D in the given flowchart.

1. Handpicking
2. Winnowing
3. Sieving
4. Filtration

Q. Label the methods of separation B, C, and D in the given flowchart.

1. Filtration
2. Winnowing
3. Sieving
4. Handpicking

Q.

The mixture of oil and water is allowed to settle for a while. What will be our final observation?

1. Forms a solution

2. Forms a colloid

3. Forms different layers

4. Forms an emulsion

Q. How will you separate a mixture of oil and water?

Q. A mixture of kerosene oil and water is an example of immiscible liquids. When left undisturbed, they form separate layers of oil and water. Can you identify which liquid comes to the bottom and which will be at the top?

1. Water comes at the top and kerosene at the bottom
2. Water settles at the bottom and kerosene comes at the top.
3. Top - Kerosene; Middle - Water; Bottom - Kerosene
4. Both get mixed well and it cannot be identified

Q. Which apparatus is used to separate two immiscible liquids?

Q. This apparatus can be used to separate a mixture of water and mustard oil.
Label the diagram and name the apparatus used in this process.
Figure

Q.

Arrange the following in the ascending order of their densities: vegetable oil, corn syrup and water.

1. Vegetable oil, Water, Corn syrup

2. Water, Corn syrup, Vegetable oil

3. Corn syrup, Vegetable oil, Water

4. Cannot be determined

Q.

Which of the following is correct regarding the densities of kerosene and water?

1. Kerosene has higher density than water

2. Kerosene and water have same densities

3. Kerosene has lower density than water

4. Cannot be determined

Q. Which substances are incorrectly placed in the following table?
$\begin{array}{cccc}& Liquid-Liquidmixtures& Lighterliquid& Heavierliquid\\ \left(a\right)& Oliveoilandwater& Oliveoil& Water\\ \left(b\right)& BenzeneandCarbon-tetrachloride& Benzene& Carbon-tetrachloride\\ \left(c\right)& WaterandKeroseneOil& Water& KeroseneOil\\ \left(d\right)& Alcoholandwater& Alcohol& Water\end{array}$

1. Liquid - Liquid mixtures: Olive oil and water
   Lighter liquid: Olive oil
   Heavier liquid: Water
2. Liquid - Liquid mixtures: Benzene and Carbon tetrachloride
   Lighter liquid: Benzene
   Heavier liquid: Carbon - tetrachloride
3. Liquid - Liquid mixtures: Kerosene oil and water
   Lighter liquid: Water
   Heavier liquid: Kerosene oil
4. Liquid - Liquid mixtures: Alcohol and water
   Lighter liquid: Alcohol
   Heavier liquid: Water