Which of the following is true about non-zinc alloys?
Amalgam not containing zinc or any of its substitutes will tend to be less plastic and less workable and more susceptible to oxidation. Non-zinc alloys should be chosen only in cases where clinically impossible to eliminate moisture from the field of operation.
Reference: Marzouk Operative dentistry, pg-111
It is more plastic
It is more workable
It is less susceptible to oxidation
Useful in cases where its clinically impossible to eliminate moisture from the field of operation