‘Phenol hasa carboxylic (-COOH) group in it while alcohols have no such group. So phenol is more acidic than alcohol’:- Justify your answer.

‘Phenol has a carboxylic (-COOH) group in it while alcohols have no such group. So phenol is more acidic than alcohol’:- Do you agree with the statement ?

Why is phenol more acidic than ethyl alcohol?

Phenols are more acidic than alcohols. Name the above reaction.

The 4s subshell has more energy than 3p subshell. Is it true ? Justify your answer.

-OH group present in alcohols is neutral while it is acidic in carboxylic acid because

Phenols are more acidic than alcohols. What is the product obtained when phenol is treated with conc. HNO_3 ?

Phenols are more acidic than alcohols. Name the product obtained when phenol is treated with chloroform in the presence of NaOH.

Following are a group of compounds showing acidic behaviour: Phenols are less acidic than carboxylic acids. Why?

Assertion : Carboxylic acids contain a carbonyl group but do not give characteristic reaction of the carbonyl group. Reason : The electrophilicity of the carbonyl carbon is more in carbocylic acids than in aldehydes and ketones.

Paragraph Carboxylic acids are distinctly acidic because they ionize in water to give hydronium ions: RCOOH+H_(2)O hArr RCOO^(-) +H_(3)O^(+) The acidic strength depends upon the extent of ionizations of the acid and the stability of the anion formed. The acidic strength can also be expressed in terms of dissociation constant K_(a) or pK_(a) which are related as pK_(a)= -log K_(a) . Most unsubstituted carboxylic acids have K_(a) values in the range of 10^(-4) to 10^(-5) (pK_(a) =4-5) . The substitutents have marked effect on the acidic strength of carboxylic acids. Any group that stabilizes the carboxylate ion more than the carboxylic acid group will increase the acidic strength, and the group which destabilizes the carboxylate group more than the carboxylic acid group will decrease the acidic strength. In a similar manner, the electron-releasing groups makes benzoic acid weaker, while the electron-withdrawing groups make benzoic acid stronger. The ortho isomer of every substituted benzoic acid (whether electron releasing or electron withdrawing) is the strongest among the three isomers due to ortho effect. Which of the following is the weakest acid?