The main difference between dental stone and dental plaster is______________?
		A.	Chemical composition
B.	Self life
C.	Sharpe and size of particles
D.	Solubility in water
		A.	Chemical composition
B.	Self life
C.	Sharpe and size of particles
D.	Solubility in water
		A.	Gram’s stain
B.	H & E stain
C.	Ziehl-Neelsen stain
D.	PAS stain
		A.	Brain
B.	Regional lymph nodes
C.	Lung
D.	Liver
		A.	Internal structures are differentiated in living cells
B.	Internal structures are differentiated in dead cells
C.	Internal metabolic activities can be observed
D.	External capsule formation can be observed
		A.	Step-growth polymerization
B.	Addition polymerization
C.	Condensation polymerization
D.	Copolymerization
		A.	Most common cause of urethritis is male
B.	All stains are highly susceptible to penicillin
C.	Wide spread axoregnic stains cause disseminated gonococcal infection
D.	Found exclusively in human beings.
		A.	Trigeminal neuralgia
B.	Sicca syndrome
C.	Dry socket
D.	Myospherulosis