Sedimentation

Q. The process of settling of rice in rice and water mixture is called ______ and pouring out the water without disturbing the rice is called _____.

1. sedimentation, decantation

2. decantation, filtration

3. filtration, sedimentation

4. sedimentation, 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. Insoluble solid particles settle at the bottom in a solid-liquid mixture. These are collectively known as .

1. filtrate
2. sediment
3. distillate

Q. Insoluble solid particles settle at the bottom in a solid-liquid mixture. These are collectively known as .

1. filtrate
2. sediment
3. distillate

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. Potable water is fit for human consumption.

1. False
2. True

Q.

Oil and water can be separated from a mixture using __________ .

1. threshing

2. winnowing

3. crystallisation

4. sedimentation & decantation

Q. Oil and water can be separated from a mixture using __________ .

1. threshing
2. winnowing
3. sedimentation & decantation
4. crystallisation

Q. The process of increasing the rate of sedimentation in a suspension by adding some chemical is known as

1. Condensation.
2. Filtration.
3. Loading.
4. Crystallisation.

Q. When water containing dissolved salts evaporate there is formation of layer of

1. Salts.
2. Rocks.
3. Sediments.
4. minerals.