444.Which of the following has highest modulus of elasticity

a.Dentin
b.Enamel
c.Amalgam
d.Composite resin






Ans-b.Enamel

443.In a cobalt chromium alloy the metal responsible for corrosion resistance is

a.Silver
b.Nickel
c.Cobalt
D.Chromium


Ans-d.Chromium

442.Drug of choice for epilepsy in pregnancy

a.Carbamezipine
b.Sodium valproate
c.Phenobarbitone
d.Phenytoin


Ans-c.Phenobarbitone