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प्रश्न
CH3CO2H or CH2FCO2H
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उत्तर
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It is difficult for the proton to escape because the +I effect of −CH3 group increases the electron density in the O–H bond. |
The release of the proton is easy because the −I effect of −F reduces the electron density in the O–H bond. |
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The +I effect due to the concentration of negative charge destabilises the carboxylate ion. |
The spreading of the negative charge causes the –I effect to stabilize the carboxylate ion. |
Hence, due to lower electron density in the O–H bond and higher stability of FCH2COO– ion, FCH2COOH is a stronger acid than CH3COOH.
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संबंधित प्रश्न
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Which acid of the pair shown here would you expect to be stronger?
CH2FCO2H or CH2ClCO2H
Which acid of the pair shown here would you expect to be stronger?
CH2FCH2CH2CO2H or CH3CHFCH2CO2H
Which acid of the pair shown here would you expect to be stronger?
Arrange the following compounds in increasing order of their property as indicated:
CH3CH2CH(Br)COOH, CH3CH(Br)CH2COOH, (CH3)2CHCOOH, CH3CH2CH2COOH (acid strength)
Arrange the following compounds in increasing order of their property as indicated:
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Arrange the following compounds in increasing order of their property as indicated:
F - CH2COOH, O2N - CH2 COOH CH3 COOH,HCOOH - acid character.
Complete the following reaction sequence.
\[\begin{array}{cc}
\ce{O}\phantom{...............................................}\\
||\phantom{...............................................}\\
\ce{CH3 - C - CH3 ->[(i) CH3MgBr][H2O] (A) ->[Na metal][Ether] (B) ->[CH3 - Br] (C)}
\end{array}\]
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Reason: It contains sp2 hybridised carbon atom.
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The correct order of decreasing acidity of the following aliphatic acids is:
