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Chemistry · 2022 · 2 marks
Aldehydes, Ketones and Carboxylic AcidsChemical Reactions of Aldehydes, Ketones and Carboxylic Acids2 marksUnderstandvery short answer
CBSE 2022 · Region 4 · Set 1 · Q1
Arrange the following compounds in the increasing order of their property indicated: (Any two) (i) Acetaldehyde, Benzaldehyde, Acetophenone, Acetone…
Arrange the following compounds in the increasing order of their property indicated : (Any two)
(i)
Acetaldehyde, Benzaldehyde, Acetophenone, Acetone (Reactivity towards HCN)
(ii)
$\displaystyle \left(\mathrm{CH}_{3}\right)_{2} \mathrm{CHCOOH}, \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}(\mathrm{Br}) \mathrm{COOH}, \mathrm{CH}_{3} \mathrm{CH}(\mathrm{Br}) \mathrm{CH}_{2} \mathrm{COOH}$ (Acidic strength)
(iii)
$\displaystyle \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}, \mathrm{CH}_{3} \mathrm{CHO}, \mathrm{CH}_{3} \mathrm{COOH}$ (Boiling point)
Marking-scheme solution
(i) Acetophenone < Benzaldehyde < Acetone < Acetaldehyde
(ii)
(iii) \(\displaystyle \mathrm{CH}_{3} \mathrm{CHO}<\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}<\mathrm{CH}_{3} \mathrm{COOH}\)
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