Which one of the following statement is incorrect regarding different separation techniques?a)Chromatography is used to separate dyes and pigments.b)Evaporation is used to separate components of chlorophyll.c)Churning technique is used for separating cream from milk.d)The process of evaporation is used on a large scale to obtain common salt from sea-water.Correct answer is option 'B'. Can you explain this answer?

Question

Answer

Evaporation is used to separate salt from seawater.

Answer

Chlorophyll cannot be separated by the evaporation method because in evaporation methods is used to separate any solid and  liquid or both liquid having different boiling points .In case of separation of chlorophyll there are so many pigments so separation of chlorophyll cannot be done by evaporation but by column chromatography.

Answer

(b)

Answer

Chlorophyll can't be seperated by evaporation because this pigment is present in more dipper part of leaves more than the water...

Answer

Incorrect Statement: Evaporation is used to separate components of chlorophyll (Option B).

Explanation:
Evaporation is a separation technique that is commonly used to separate a solvent from a solute. This process involves heating the mixture to vaporize the solvent, leaving behind the solute. However, in the case of separating the components of chlorophyll, evaporation is not the appropriate technique to use.

Chromatography:
Chromatography is a separation technique that is used to separate different components of a mixture based on their differential movement through a stationary phase. This technique is commonly used to separate dyes and pigments, as each component has a different affinity for the stationary phase. As the mixture passes through the stationary phase, the components separate and can be collected individually.

Churning Technique:
Churning is a mechanical technique that is used to separate cream from milk. It involves agitating the milk to separate the fat globules from the rest of the liquid. As the milk is churned, the fat globules clump together to form butter, leaving behind the liquid portion which is the cream.

Evaporation for Obtaining Common Salt:
The process of evaporation is indeed used on a large scale to obtain common salt from seawater. This technique takes advantage of the fact that salt has a higher boiling point than water. The seawater is heated to evaporate the water, leaving behind the salt crystals. These crystals can then be collected and further processed to obtain common salt.

Conclusion:
From the given options, the incorrect statement is option B, which states that evaporation is used to separate components of chlorophyll. While evaporation is a useful technique for many separations, it is not suitable for separating the components of chlorophyll.

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