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प्रश्न
Arrange the following in the increasing order of their boiling points : C2H5OH, CH3 − CHO, CH3 − COOH
उत्तर
Due to extensive hydrogen bonding, carboxylic acids have the highest boiling points among the given compounds. Alcohols, with smaller number of hydrogen bonds, have lesser boiling point. Aldehydes have the least boiling point due to the absence of hydrogen bonding.
Hence, in the increasing order of boiling points, the compounds can be arranged as follows :-
CH3-CHO < C2H5OH < CH3-COOH
संबंधित प्रश्न
Explain the structure of carbonyl functional group
The carbonyl carbon atom:
In Clemmensen Reduction carbonyl compound is treated with:
Treatment of compound \[\begin{array}{cc}
\phantom{.....}\ce{O}\\
\phantom{.....}||\\
\ce{Ph - O - C - Ph}
\end{array}\] with \[\ce{NaOH}\] solution yields
(i) Phenol
(ii) Sodium phenoxide
(iii) Sodium benzoate
(iv) Benzophenone
Arrange the following in decreasing order of their acidic strength. Give explanation for the arrangement.
\[\ce{C6H5COOH, FCH2COOH, NO2CH2COOH}\]
Assertion: Compounds containing \[\ce{-CHO}\] group are easily oxidised to corresponding carboxylic acids.
Reason: Carboxylic acids can be reduced to alcohols by treatment with \[\ce{LiAlH4}\].
Write down functional isomers of a carbonyl compound with molecular formula \[\ce{C3H6O}\]. Which isomer will react faster with \[\ce{HCN}\] and why? Explain the mechanism of the reaction also. Will the reaction lead to the completion with the conversion of whole reactant into product at reaction conditions? If a strong acid is added to the reaction mixture what will be the effect on concentration of the product and why?
Among the given compound, the most susceptible to nucleophile attack at the at the carbonyl group
Which of the following is INCORRECT?
