Am-£^-1f91iarm-}  Examination  Questions.  267 
R    Quinin.  Sulph  gr.  j 
Ext.  Nucis  Vomicae  gr.  v 
Morph.  Sulph  gr.  viij 
M.  ft.  pil.  No.  x. 
Sig.  One  pill  every  three  hours. 
R    Potass.  Permang   .  £j 
Alcohol  
Glycerin  ,  ^  ij 
M.  ft. 
Sig.  Use  as  directed.  X. 
CHEMISTRY. 
A — (1)  What  are  the  native  sources  of  Borax  ?  Give  the  chemical  formulas 
for  Sodii  Boras  and  for  Acidum  Boricum.  (2)  How  would  you  prepare  Borax 
from  Boric  Acid ?  (3)  How  would  you  prepare  Boric  Acid  from  Borax?  (4) 
Give  the  most  characteristic  tests,  both  physical  and  chemical,  for  both  these 
compounds. 
B — (1)  Describe  the  metal  Sodium.  (2)  Give  two  of  the  methods  used  for 
its  production.  (3)  Give  the  formulas  of  Sodii  Chloridum,  Sodii  Chloras,  Sodii 
Hyposulphis,  Sodii  Phosphas,  and  Sodii  Hypophosphis.  (4)  What  are  the 
analytical  tests  for  Sodium  and  its  Salts  ? 
C—(i)  What  are  the  chief  ores  of  Zinc,  and  how  is  the  metal  obtained  from 
them  ?  Describe  the  metal,  and  enumerate  its  properties,  both  physical  and 
chemical.  (3)  Mention  the  uses  of  Zinc,  and  state  which  alloys  of  it  are  of 
practical  value.  (4)  Give  the  names  and  formulas  of  the  official  Salts  of 
Zinc. 
D — (1)  Give  the  formula  of  Acidum  Chromicum.  (2)  Give  the  formula  of 
Potassii  Bichromas,  and  of  the  normal  Potassium  Chromate,  and  explain  the 
chemical  difference  between  these  formulas.  (3)  What  takes  place  when  an 
excess  of  Sulphuric  Acid  is  added  to  a  concentrated  aqueous  solution  of  Potassium 
Bichromate  ?  (4)  What  takes  place  when  an  alkaline  hydrate  solution  is  added 
to  a  solution  of  Potasii  Bichromas?  (5)  What  pigments  may  be  formed 
from  Potassium  Bichromate  ? 
E — (1)  Write  the  chemical  formulas  of — Ferri  Chloridum,  Ferri  Oxidum 
Hydratum,  Ferri  Sulphas,  Ferri  Hypophosphis,  Potassii  Ferrocyanidum,  Ferri 
Lactas.  (2)  State  by  what  tests  Ferrous  Salts  can  be  distinguished  from  Ferric 
Salts  ?  (3)  State  how  a  Ferrous  Compound  can  be  converted  into  a  Ferric 
one  ? 
F — (1)  Give  the  general  formulas  for  the  Paraffin,  the  Olefine,  and  the  Ben- 
zene series  of  Hydrocarbons.  (2)  State  the  occurrence  in  nature  or  conditions 
of  artificial  formation  of  each  of  these  series.  (3)  How  could  you  distinguish, 
by  chemical  tests,  between  these  three  series  ? 
G — (1)  Name  an  official  compound  belonging  to  the  class  of  Triatomic 
Alcohols.  (2)  State  the  source  of  the  compound  and  how  it  is  prepared  from 
the  naturally  occurring  products.  (3)  Write  the  reaction  for  its  production 
from  one  of  these  substances.  (4)  Name  the  other  products  of  the  reaction 
just  referred  to. 
H — (1)  Write  the  graphic  formulas  of  Alcohol,  Chloral,  Acidum  Car- 
bolicum,  Acidum  Benzoicum,  and  Acidum  Gallicum. 
