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31 questions from the nail technology theory practice test.
10 questions, graded as you go, with the reason for every answer. No sign-up.
Which initiator is blended into polymer powder to start the reaction with monomer liquid?
A. Benzoyl peroxide
Benzoyl peroxide in the powder breaks apart to supply the energy that starts the chain reaction. Nitrocellulose is the film former in nail polish and plays no part in this reaction.
Reference: Nail technology theory: monomer liquid and polymer powder chemistry
Which monomer is the main ingredient in most professional monomer liquids today?
C. Ethyl methacrylate (EMA)
Ethyl methacrylate is the standard monomer in professional liquid-and-powder systems. MMA monomer liquid is prohibited by many state boards, and methacrylic acid is the active ingredient in acid-based primer.
Reference: Nail technology theory: monomer liquid and polymer powder chemistry
Why are inhibitors added to monomer liquid?
A. To keep it from hardening in the bottle
Inhibitors prevent premature polymerization so the liquid stays usable during storage. Speeding the reaction on the nail is the job of the catalyst and initiator.
Reference: Nail technology theory: monomer liquid and polymer powder chemistry