325.Average mercury content in well condensed amalgam should not exceed

a.30%
b.40%
c.50%
d.60%
Ans-c .50%
refer phillips 11nth ed pg 552

324.After periodontal surgery sulcus can be safely probed after

a. 2 months
b.3 months
c.4 months
d.5 months
Ans-b.3 months

323.The percentage of formaldehyde in buckleys formocresol is

a.15%
b.19%
c.25%
d.20%
Ans-b.19%
reference shoba tandon I st ed pg 342