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Answer in brief. Formic acid is stronger than acetic acid. Explain. - Chemistry

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प्रश्न

Answer in brief.

Formic acid is stronger than acetic acid. Explain.

टीपा लिहा

उत्तर

  1. The negatively charged acetate ion (i.e., the conjugate base of acetic acid) gets destabilized by + I effect of – CH3 group.
  2. Lesser is the stabilization of the conjugate base, weaker is the acid.
  3. In formate ion, there is no such destabilization effect.

Thus, formic acid is stronger than acetic acid.

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Chemical Properties of Carboxylic Acids
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पाठ 12: Aldehydes, Ketones and Carboxylic acids - Exercises [पृष्ठ २८१]

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बालभारती Chemistry [English] 12 Standard HSC
पाठ 12 Aldehydes, Ketones and Carboxylic acids
Exercises | Q 3.2 | पृष्ठ २८१

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

  1. acetic acid
  2. fluoroacetic acid
  3. 4-Nitrobenzoic acid 
  4. 4-Methyl benzoic acid is ______.

Write the structure of the product formed when carboxylic acid is heated with a dehydrating agent like P2O5


Write the reducing agent which CANNOT reduce –COOH group.


What is the action of following on proponal?

Hydroxyl amine


What is the action of following on proponal?

Hydrazine


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 reaction for preparation of acetophenone from benzoyl chloride.


Complete the following sequence of reactions and write structures for A, B, C.

\[\ce{Dry ice ->[i. Dry ether][ii. Hydrolysis] A ->[PCl5] B ->[H2(gas)][Pd - BaSO4] C}\]


In the reaction,

\[\ce{CH3COOH ->[SOCl2] X ->[Sodium salt of carboxylic acid] Y}\].

The compound Y was found to be a mixed acid anhydride. Thus, the sodium salt of carboxylic acid used CANNOT be ____________.


In the reaction, \[\ce{C6H5COCH3 ->[{[H]}][Zn-Hg/conc. HCl] X}\], X is ______.


Which is the gas evolved when carboxylic acids react with strongly electropositive metals (such as Na, K, Ca, Zn)?


Products in the following reaction are:

\[\ce{CH3COOH + PCl3 ->[\Delta]}\]


The reducing agent preferred to convert carboxylic acids and esters to primary alcohols is ____________.


Which of the following aromatic acids has less acidic strength than benzoic acid?


Write structure of adipic acid.


Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C?


Excess of ammonia with sodium hypochloride solution in the presence of glue or gelatine gives ______.


The number of bonding pairs and lone pairs of electrons present in the central atom of ammonia molecular are respectively.


Which of the following can reduce?

\[\ce{RCOOH -> RCH2OH}\]


Draw structures 01 conjugate bases of monochloroacetic acid and dichloroacetic acid. Which one is more stabilized by -I effect?


How sodium bicarbonate test is used to distinguish between carboxylic acid and phenol?


Identify 'A', 'B' and 'C' in following chain reaction and rewrite the chemical reactions:
\[\ce{CH3CH2OH ->[red 'P'][Br2] A ->[KCN][alc] B ->[LiAlH4][Ether] C}\]

How will you prepare Acetic anhydride from acetic acid?


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