Home
Class 11
CHEMISTRY
During hearing of a court case, the judg...

During hearing of a court case, the judge suspected that some changes in the documents had been carried out. He asked the forensic department to check the ink used at two different places. According to you which technique can give the best results ?

A

Column chromatography

B

Solvent extraction

C

Distillation

D

Thin layer chromatography

Text Solution

Verified by Experts

The correct Answer is:
D
Thin layer chromatography (TLC) is another type of adsorption which involves separation of substances of a mixture over a thin layer of an adsorbent coated on a glass plate. A thin layer of an adsorbent is spread over a glass plate and glass plate is placed in an eluant. As eluant rises, components of the mixture move up along with the eluant to different distances depending on their degree of adsorption and separation takes place. Therefore, this TLC technique will give best results in identifying the different types of ink used at different places in the documents.
Promotional Banner

Similar Questions

Explore conceptually related problems

Karan Nath took over D' north Motor Company from his ailing father three months ago. In the past, the company was not performing well Karan was determined to improve the company's performance He observed that the methods of production as well as selection of employees in the company were not scientific He believed that there was only one best method to maximise efficiency He also felt that once the method is developed, the workers of the company should be trained to learn that 'best method He asked the Production Manager to develop the best method and carry out the necessary training. The Production Manager developed this method using several parameters right from deciding the sequence of operations, place for men, machines and raw materials till the delivery of the product to the customers. This methods was implemented throughout the organisation. It helped in increasing the output, improving the quality and reducing the cost and wastage Identify and explain the principles and the technique of scientific management followed by the Production Manager in the above case