About polymerization shrinkage of composite all are true, except________?

Secondary syphilis occurs after________?

Redman syndrome is side effect of________?

Biuret test is confirmatory test for________?

No trail closure is necessary with which one of the technique during denture fabrication________?

A boy complains of bleeding gums, swollen, joints with hemorrhage into joints His paternal and maternal uncle complains of same problem It is due to deficiency of factor________?