-, *, .
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*(, - ( 10.3.1)
(CH3, OH, NH2 ..), ,
, (NO2, CN, COR, Cl, SO3H .).
, , ( ) .
, , , ( 10.3.2)
10.3.2
, . , - ( ),
(), . , . , - , , , ( 10.3.3):
10.3.3
- .
- , (NO) (. 10.1.3), . , - ( 10.3.4):
10.3.4
-. R=OH ( 10.3.5):
10.3.5
:
N2O3 + 2H2SO4 2 O=NOSO3H + H2O
- , , , RC6H52NSO5H3H2SO4. ⭭ . H2SO4, . .
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, , H2SO4 . . , , NO.