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प्रश्न
Write the preparation reactions for acid amide from the following.
Carboxylic acid
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उत्तर
Carboxylic acids react with ammonia to form ammonium carboxylate salt which on further strong heating at high temperature decomposes to give acid amide.
\[\begin{array}{cc}
\phantom{}\ce{O}\phantom{......==.............}\ce{O}\phantom{........................}\ce{O}\phantom{...}\\
\phantom{}||\phantom{.......................}||\phantom{.........................}||\phantom{...}\\
\ce{\underset{\text{Carboxylic acid}}{R - C - OH} + NH3 ⇌ \underset{\text{Ammonium carboxylate}}{R - C - O- - NH^+_4} ->[\Delta][-H2O] \underset{\text{Acid amide}}{R - C - NH2}}
\end{array}\]
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संबंधित प्रश्न
Arrange the following carboxylic acids with increasing order of their acidic strength and justify your answer.
1) 
2) 
3) 
Correct order of acid strength for
- acetic acid
- fluoroacetic acid
- 4-Nitrobenzoic acid
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Write the preparation reactions for acid amide from the following.
Acid chloride
Write reactions for the following conversions.
Propanone to Propane
Write reactions for the following conversions.
4-Nitrobenzoic acid to Nitrobenzene
Write chemical reactions to convert –COOH group of acetic acid into the following.
CH4
Write chemical reactions to convert –COOH group of acetic acid into the following.
C2H5OH
Write chemical reactions to convert –COOH group of acetic acid into the following.
CH3COCl
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\[\ce{CH3COOH + PCl3 ->[\Delta]}\]
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The elimination of CO2 from a carboxylic acid is known as ____________.
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Which of the following aromatic acids has less acidic strength than benzoic acid?
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Which of the following can reduce?
\[\ce{RCOOH -> RCH2OH}\]
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Identify the product ‘B’ in the following sequence of reactions.
\[\ce{\underset{}{Methylpropanoate} ->[Δ][dil. NaOH] \underset{\underset{}{}}{A}->[H+][Conc. HCl] \underset{\underset{}{}}{B}}\]
