Quiz on Amines

Which of the following is a 3° amine?

• 1-methylcyclohexylamine

• Triethylamine

• tert-butylamine

• N-methylaniline

The correct IUPAC name for CH2==CHCH2NH3 is

• Allylmethylamine

• 2-amino-4-pentene

• 4-aminopent-1-ene

• N-methylprop-2-en-1-amine

Amongst the following, the strongest base in aqueous medium is ____________.

• CH3NH2

• NCCH2NH2

• (CH3)2NH

• C6H5NHCH3

Which of the following is the weakest Brönsted base?

• CH3NH2

Benzylamine may be alkylated as shown in the following equation : C6H5CH2NH2 + R—X ⎯⎯⎯⎯→ C6H5CH2NHR. Which of the following alkylhalides is best suited for this reaction through SN1 mechanism?

• CH3Br

• C6H5Br

• C6H5CH2Br

• C2H5Br

Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?

• H2(excess)/Pt

• LiAlH4 in ether

• Fe and HCl

• Sn and HCl

In order to prepare a 1° amine from an alkyl halide with simultaneous addition of one CH2 group in the carbon chain, the reagent used as source of nitrogen is ___________.

• Sodium amide, NaNH2

• Sodium azide, NaN3

• Potassium cyanide, KCN

• Potassium phthalimide, C6H4(CO)2N–K+

The source of nitrogen in Gabriel synthesis of amines is _____________.

• Sodium azide, NaN3

• Sodium nitrite, NaNO2

• Potassium cyanide, KCN

• Potassium phthalimide, C6H4(CO)2N–K+

Amongst the given set of reactants, the most appropriate for preparing 2° amine is _____.

• 2° R—Br + NH3

• 2° R—Br + NaCN followed by H2/Pt

• 1° R—NH2 + RCHO followed by H2/Pt

• 1° R—Br (2 mol) + potassium phthalimide followed by H3O+/heat

The best reagent for converting 2–phenylpropanamide into 2-phenylpropanamine is _____.

• excess H2

• Br2 in aqueous NaOH

• iodine in the presence of red phosphorus

• LiAlH4 in ether