CBSE 2022 · Region 3 · Set 2 · Q1 · 2 marks
Arrange the following compounds in increasing order of their property as indicated in bracket : (Any two)(i)$\displaystyle \mathrm{CH_3{-}CHO}$, , (reactivity towards HCN)(ii)$\displaystyle \mathrm{CCl_3{-}COOH}$, $\displaystyle \mathrm{CF_3{-}COOH}$, $\displaystyle \mathrm{(CH_3)_3C{-}COOH}$ (acid strength)(iii) , , , (acid strength)
Arrange the following compounds in increasing order of their property as indicated in bracket : (Any two)
(i)
$\displaystyle \mathrm{CH_3{-}CHO}$, , (reactivity towards HCN)
(ii)
$\displaystyle \mathrm{CCl_3{-}COOH}$, $\displaystyle \mathrm{CF_3{-}COOH}$, $\displaystyle \mathrm{(CH_3)_3C{-}COOH}$ (acid strength)
(iii)
, , , (acid strength)
Marking-scheme solution
(i)
$\displaystyle <$ $\displaystyle <$ $\displaystyle \mathrm{CH_3{-}CHO}$
(ii)
$\displaystyle \mathrm{(CH_3)_3C{-}COOH}$ $\displaystyle <$ $\displaystyle \mathrm{CCl_3{-}COOH}$ $\displaystyle <$ $\displaystyle \mathrm{CF_3{-}COOH}$
(iii)
$\displaystyle <$ $\displaystyle <$ $\displaystyle <$
Aldehydes, Ketones and Carboxylic AcidsChemical Reactions of Aldehydes, Ketones and Carboxylic AcidsUnderstandvery_short_answermedium
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CBSE Class 12 Chemistry past-paper question from the 2022board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.