CBSE 2023 · Region 1 · Set 2 · Q23 · 2 marks
Predict the products of the following reactions:(i)$\displaystyle \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH} \xrightarrow{\mathrm{Cu} / 273 \mathrm{~K}}$(ii)$\displaystyle \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OH} \xrightarrow{\mathrm{Br}_{2}(\mathrm{aq})}$Give reasons for the following:(i)p-nitrophenol is more acidic than p-methylphenol.(ii)$\displaystyle \left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\mathrm{Br}$ on reaction with $\displaystyle \mathrm{NaOCH}_{3}$ gives alkene as the main product and not an ether.
Predict the products of the following reactions:
(i)
$\displaystyle \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH} \xrightarrow{\mathrm{Cu} / 273 \mathrm{~K}}$
(ii)
$\displaystyle \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OH} \xrightarrow{\mathrm{Br}_{2}(\mathrm{aq})}$
Give reasons for the following:
(i)
p-nitrophenol is more acidic than p-methylphenol.
(ii)
$\displaystyle \left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\mathrm{Br}$ on reaction with $\displaystyle \mathrm{NaOCH}_{3}$ gives alkene as the main product and not an ether.
Marking-scheme solution
(a) (i) No reaction possible at \(\displaystyle 273 \mathrm{~K} / \mathrm{CH}_{3} \mathrm{CHO}\) at $\displaystyle 573$ K
(ii)
Alcohols, Phenols and EthersAlcohols and PhenolsApplyvery_short_answermedium
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CBSE Class 12 Chemistry past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.