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(a) Why is NH(2) group group acetylated ...

(a) Why is `NH_(2)` group group acetylated before carrying out nitration?
(b) Give increasing order towards electrophilic substitution of the following compounds.
`C_(6)H_(5)CH_(3),C_(6)H_(5)N(CH_(3))_(2),C_(6)H_(5)overset(+)(N)(CH_(3))_(3),C_(6)H_(5)CH_(2)overset(+)(N)(CH_(3))_(3)`.

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The order of reactivity of the following compounds towards electrophilic substitution will be : (I) C_(6)H_(5)CH_(3) (II) C_(6)H_(5)CH_(2)CH_(3) (III) (C_(6)H_(5)CH(CH_(3))_(3) (IV) (C_(6)H_(5)C(CH_(3))_(3)

The order of reactivity of the following compounds C_(6)H_(5)CH_(3) C_(6)H_(5)CH_(2)CH_(3) towards electrophilic substritution will be :

Arrange the following in incresing order of basic strength : C_(6)H_(5)NH_(2),C_(2)H_(5)NHCH_(3),C_(6)H_(5)N(CH_(3))_(2) .

IUPAC name of the following compound is {:(" "H),(" |"),(CH_(3)-C-CH_(2)-CH_(3)),(" |"),(" "C_(6)H_(5)):}

IUPAC name of the following compound is CH_(3)-underset(C_(6)H_(5))underset(|)overset(H)overset(|)C-CH_(2)CH_(3)

Rearrange the following in an increasing order of their basic strenghts : C_(6)H_(5)NH_(2),C_(6)H_(5)N(CH_(3))_(2),(C_(6)H_(5))_(2)NH and CH_(3) NH_(2)

The decreasing order of reactivity of the following compounds in S_(N)1 reactions is _________. (i) C_(6)H_(5)CH_(2)Br" " (ii) C_(6)H_(5)CH(C_(6)H_(5)Br (iii) C_(6)H_(5)CH(CH_(3)Br" "(iv) C_(6)H_(5)C(CH_(3))(C_(6)H_(5))Br

Write chemical equations for the following conversions : CH_(3)-CH_(2)-Cl into CH_(3)-CH_(2)-CH_(2)-NH_(2) C_(6)H_(5)-CH_(2)-Cl into C_(6)H_(5)-CH_(2)-CH_(2)-NH_(2)

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