Filtration

Q.

Which process is used to separate a pure solid from a solid-liquid solution?

1. Simple distillation

2. Crystallization

3. Filtration

4. Sedimentation and decantation

Q.

_____ can be used to separate pebbles and stones from the sand.

1. Thresher

2. Mesh

3. Sieve

4. Filter paper

Q.

Which of the following separation techniques use the difference in the size of particles to separate them?

1. Winnowing

2. Filtration

3. Sieving

4. Both Filtration and sieving

Q.

23. a. You are given a glass full of muddy water. The steps you should take to get clear water from it are listed below. Arrange these steps in the correct order.
i. Line a funnel with filter paper or cloth.
ii. Allow the water to stand, without disturbing it.
iii. Gently pour out the liquid portion into another glass.
iv. Throw away the thick muddy water left behind in the first glass.
v. Pour the water into the funnel.
vi. The mud particles, being heavier, will settle at the bottom.
vii. Collect the clear water that comes through the funnel.

b. Give a single word that explains the steps described in ii and v.

Q.

The method used to separate husk from grains

Q.

8(d). Impurities settled at the bottom when muddy water was kept over night in a bucket. The clear water was then poured of from the top. The process of separation used in this example is called _________.

Q.

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

Tea leaves from tea

Q.

Define sedimentation.

Q.

State the methods by which impurities like sand can be removed.

Q. The components of which among the following mixtures can be separated by filtration?

1. Ink in water
2. Saltwater
3. Cornflakes in milk
4. Sugar in water

Q. A mixture of sand and iodine can be separated by:

1. distillation
2. magnetic separation
3. Sublimation
4. Filtration