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Double Displacement Reaction

Reena puts a ...

Question

Reena puts a filter paper strip, with different ink spots, into a beaker containing water as shown in the figure. What can be observed after some time? Given that all the inks are containing multiple components.

A

All ink spots move upto different levels without spliting into components

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B

All ink spots split into different components at same level

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C

All ink spots split into different components at different level

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D

No changes observed after some time

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Solution

The correct option is C All ink spots split into different components at different level
Chromatography is the technique used for the separation of components of dye. It is based on the principle of different solubilities of components in a same solvent, such as water. The component that is more soluble in water, moves upto a high level on a paper as compared to other components.
Therefore, all the ink spots will split into different components and move to different levels on the paper.

Fig: Spliting of ink spots into multiple components at different levels

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Q. Question 36
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(a) What would you expect to see, if the ink contains three different coloured components?
(b) Name the technique used by the child.
(c) Suggest one more application of this technique.

Q. Reena drops a filter paper with different ink marking into a beaker containing water as shown in the figure. Which of the following can be observed and inferred after some time?

Q. Tony wanted to separate the mixture of dyes constituting a sample of ink in his chemistry laboratory. He marked a line by the ink on a filter paper and placed the filter paper in a glass containing water as shown in the figure. The filter paper was removed when the water moved near the top of the filter paper.
What would you expect to see on the strip, if the ink contains three different coloured components?

Q. A child wanted to separate the mixture of dyes constituting a sample of ink. He marked a line by the ink on the filter paper and placed the filter paper in a glass containing water as shown in the figure. The filter paper was removed when the water moved near the top of the filter paper.
(a) What would you expect to see, if the ink contains three different coloured components?
(b) Name the technique used by the child.
(c) Suggest one more application of this technique.

Q. can any one tell the correct answer of q 18 part 1

18. A child wanted to separate the mixture of dyes constituting a sample of ink. He marked a line by the ink on the filter paper and place the filter paper in a glass containing water. The filter paper was removed when the water moved near the top of the filter paper.

(i) What would you expect to see, if the ink contains three different coloured components ?

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