Q1 of 59 Page 101

Group activity (group of four): Use your research skills (including the Internet) to find out what is forensic science and obtain information about the use of chromatography in forensic science.

Forensic science is the way of utilising science in catching the criminals in our society.


Application of chromatography in forensic science:


a) The blood samples that are recovered from the crime scene.


b) chromatography is used to analyze the explosive material.


c) It is helpful to analyze whether content written is using the same ink or different ink.


d) It is used to catch the suspect of stealing the money by mixing the money with the dye and then analyzing it using chromatography.


More from this chapter

All 59 →
5

How will you separate a mixture containing saw dust, naphthalene and iron filings?

 1

How is a mixture of common salt, oil and water separated? You can use a combination of different methods.

 1

Field Trip: Visit a milk dairy and note down the at least two separating techniques used there.

 1


Two immiscible liquids are taken in the above funnel for separation. Which is denser, X or Y? Suggest any one example for X and one for Y. A third liquid Z which is soluble only in Y is added to the mixture and contents in the funnel are shaken well. How many layers will you observe now? How will you separate the three liquids? Boiling point of X is 98° C, that of Y is 43° C and that of Z is 75° C.