WorksheetsFingerprint Chemicals Quiz
Total questions: 12
Worksheet time: 6mins
Ninhydrin is primarily used on which type of surface?
Wood and Styrofoam
Household items like metal and glass
Paper
Cardboard
What does Ninhydrin react with?
Salt in sweat
Amino acids in sweat
Carbohydrates in latent prints
Oils in the skin
What color print appears when Ninhydrin is used?
White
Black or red
Purple-blue
Brown
Cyanoacrylate vapor is commonly used on:
Plastic, metal, glass, and skin
Paper
Cardboard
Styrofoam
What chemical reaction does Cyanoacrylate vapor rely on?
Reaction with carbohydrates
Reaction with amino acids
Reaction with salt
Reaction with iodine
The appearance of a Cyanoacrylate vapor print is:
Black
Purple-blue
White
Brown
Silver Nitrate is best for which type of surface?
Paper
Wood and Styrofoam
Cardboard
Glass
Silver Nitrate reacts with:
Carbohydrates in latent prints
Amino acids in sweat
Chloride from salt in sweat
Oils in skin
What is the appearance of a Silver Nitrate print?
Brown (fades quickly)
Purple-blue
White
Black, red, or brown (under UV light)
Iodine Fuming is commonly used on:
Paper, cardboard, unpainted surfaces
Plastic and glass
Metal objects
Wood
What does iodine combine with in latent prints?
Amino acids
Carbohydrates
Salt
Proteins
The appearance of an iodine fuming print is:
Purple-blue (permanent)
Brown (fades quickly, must be photographed)
White (lasting)
Black under UV light
