Question

7.When the liquid is spun rapidly the denser particles are forced to the bottom and the lighter particles stay at the top.This principle is used in:
(a) Centrifugation
(b) Fractional distillation
(c) Evaporation
(d) Tunneling


please answer correctly otherwise I report your answer
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Answer 1

Answer:

particles stay … Get the answers you need, now! ... stay at the top. This principle is used in: (a) Centrifugation (b) Fractional distillation (c) Evaporation (d) Tunneling. 2

Answer 2

Final answer: Option (a) centrifugation is correct.

Given that: We are given the principle, when the liquid is spun rapidly the denser particles are forced to the bottom and the lighter particles stay at the top.

To find: We have to find the technique in which this principle is used:

(a) Centrifugation

(b) Fractional distillation

(c) Evaporation

(d) Tunneling

Explanation:

• Centrifugation is a technique used for the separation of insoluble materials from a liquid where normal filtration does not work well according to their size, shape, density, viscosity of the medium and rotor speed by using the principle of sedimentation. The principle is that the denser particles are forced to the bottom and the lighter particles stay at the top when spun rapidly due to centrifugal force.

Hence, option (a) centrifugation is correct.

• Fractional distillation is a technique for the separation of a mixture of two or more miscible liquids for which the difference in their boiling points is less than 25 K. In this process separating the components of a mixture of two or more miscible liquids by repeated distillations and condensations.

Hence, option (b) fractional distillation is wrong answer.

• Evaporation is a technique used to separate out solid particle from the liquid by heating the mixture until no more solvent remains. The mixture should only contain one liquid component otherwise it is not important to isolate the liquid components. This technique is suitable to separate a soluble solid from a liquid.

Hence, option (c) evaporation is again wrong answer.

• Tunneling is the process when a particle is able to penetrate through a potential energy barrier to higher in energy than the particle’s kinetic energy. It is a quantum mechanical phenomenon not a separation technique.

Hence, option (d) tunneling is also wrong answer.

To know more about the concept please go through the links

https://brainly.in/question/693751

https://brainly.in/question/6476743

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