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Amines Exam 2025/2026 With 100% Correct Answers

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Reduction of nitro groups(Prep) CORRECT ANSWERS Nitro + H2/Ethanol ----->Amines Nitro + Sn/HCl ----->Amines Nitro + Fe/HCl ----->Amines Ammonolysis of Alkyl Halides(Prep) CORRECT ANSWERS Alkyl Halide + NH3 ---->Substituted Ammonium Salt Substituted Ammonium Salt+ Strong Base ---->Amines Order of Halide reactivity = RI>RBr>RCl Reduction of Nitriles(Prep) CORRECT ANSWERS RCN + H2/Ni/NaHg/C2H5OH or LiAlH4---->RCH2NH2 Reduction of Amides(Prep) CORRECT ANSWERS RCONH2 + LiAlH4/H2O ---->RCH2NH2 Gabriel Pthalamide Reaction(Prep) CORRECT ANSWERS Alkyl Pthalamide + NaOH---->RNH2 Hoffmann Bromide Degradation(Prep) CORRECT ANSWERS RCONH2 + Br2 + NaOH ----> RNH2 + Na2CO3 + 2NaBr + 2H2O Physical Properties CORRECT ANSWERS Less polar than alcohols No intermolecular H bonding in tertiary Amines Basic Character of Amines CORRECT ANSWERS Alkylamines=stronger base than ammonia Gaseous Phase(Basicity)=3>2>1 Aqueous Phase=(Methyl)=2>1>3>NH3 Aqueous Phase=(Ethyl)=2>3>1>NH3

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Amines Exam 2025/2026 With 100%
Correct Answers


Reduction of nitro groups(Prep) CORRECT ANSWERS Nitro +
H2/Ethanol ----->Amines


Nitro + Sn/HCl ----->Amines


Nitro + Fe/HCl ----->Amines


Ammonolysis of Alkyl Halides(Prep) CORRECT ANSWERS
Alkyl Halide + NH3 ---->Substituted Ammonium Salt


Substituted Ammonium Salt+ Strong Base ---->Amines


Order of Halide reactivity = RI>RBr>RCl


Reduction of Nitriles(Prep) CORRECT ANSWERS RCN +
H2/Ni/NaHg/C2H5OH or LiAlH4---->RCH2NH2

, Reduction of Amides(Prep) CORRECT ANSWERS RCONH2
+ LiAlH4/H2O ---->RCH2NH2


Gabriel Pthalamide Reaction(Prep) CORRECT ANSWERS
Alkyl Pthalamide + NaOH---->RNH2


Hoffmann Bromide Degradation(Prep) CORRECT ANSWERS
RCONH2 + Br2 + NaOH ----> RNH2 + Na2CO3 + 2NaBr +
2H2O


Physical Properties CORRECT ANSWERS Less polar than
alcohols


No intermolecular H bonding in tertiary Amines


Basic Character of Amines CORRECT ANSWERS
Alkylamines=stronger base than ammonia


Gaseous Phase(Basicity)=3>2>1


Aqueous Phase=(Methyl)=2>1>3>NH3
Aqueous Phase=(Ethyl)=2>3>1>NH3

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