Advertisements
Advertisements
प्रश्न
Give a plausible explanation for the following:
Why are amines less acidic than alcohols of comparable molecular masses?
Advertisements
उत्तर
Loss of a proton from an amine gives an amide ion, while loss of a proton from alcohol gives an alkoxide ion.
\[\ce{R-NH2 -> R-NH– + H+}\]
\[\ce{R-O-H -> R-O^- + H+}\]
Since O is more electronegative than N, it will attract positive species more strongly in comparison to N. Thus, RO− is more stable than RNH−. Thus, alcohols are more acidic than amines. Conversely, amines are less acidic than alcohols.
APPEARS IN
संबंधित प्रश्न
Write a short note on Hoffmann bromamide degradation.
Identify the compounds 'A' and 'B' in the following equation:
Give the structure of A, B and C in the following reaction:
\[\ce{CH3CH2I ->[NaCN] A ->[OH-][Partial hydrolysis] B ->[NaOH + Br2] C}\]
Give the structures of A, B and C in the following reaction:
\[\ce{CH3COOH ->[NH3][\Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\]
Explain the mechanism of action of hydroiodic acid on 3-methylbutan-2-ol.
Give the structures of A, B and C in the following reactions :
Account for the following:
Gabriel phthalimide synthesis is not preferred for preparing aromatic primary amines.
Write reactions to prepare ethanamine from Acetonitrile.
Mendius reaction is used to convert _____________
Why cannot aniline be prepared by Gabriel phthalimide synthesis?
Explain the following reaction with a suitable example.
Hofmann elimination reaction
Identify the product obtained when benzyl chloride undergoes ammonolysis in presence of excess ammonia followed by the reaction with two moles of methyl iodide.
Identify the major product (B).
\[\ce{CH3-CN ->[Na/C2H5OH]}\]
The product formed is ____________.
Identify the product obtained when benzamide is treated with bromine and aqueous sodium hydroxide?
Identify the INCORRECT statement regarding Hofmann bromamide reaction.
Which of the following does NOT give carbylamine test?
Methyl amine on reaction with chloroform in the presence of NaOH gives ______.
Write the name of the product formed by the action of LiAlH4/ether on acetamide.
Write a short note on Ammonolysis.
