Which of the following chemicals could be used to enhance a fingerprint?
A) DFO (1,8-diazafluoren-9-one)
B) Cyanoacrylate
C) Ninhydrin
D) Choice 'a' and 'b' are correct.
E) Choice a, b, and c are correct .

Question

Quizplus · Accepted Answer

All three chemicals, DFO, Cyanoacrylate, and Ninhydrin, can be used to enhance a fingerprint. DFO is a fluorescent dye that binds to amino acids in sweat and gives off a blue fluorescence under certain light sources. Cyanoacrylate, also known as superglue, creates a white cast on the surface of an object when heated and reacts with the moisture in a fingerprint, making the ridge pattern visible. Ninhydrin reacts with amino acids in sweat and creates a purple-blue color on the surface of the fingerprint. Therefore, the best choice is E, as all three chemicals can be used to enhance a fingerprint in different ways.

Which of the Following Chemicals Could Be Used to Enhance