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Science · 2024 · 3 marks
CBSE 2024 · Region 4 · Set 3 · Q28
Write chemical equations for the following reactions, giving the conditions for the reaction in each case :(a)Reaction of ethanol with ethanoic acid(b)Reaction of an ester with a base (NaOH)(c)Formation of ethene from ethanol
Write chemical equations for the following reactions, giving the conditions for the reaction in each case :
(a)
Reaction of ethanol with ethanoic acid
(b)
Reaction of an ester with a base (NaOH)
(c)
Formation of ethene from ethanol
Marking-scheme solution
(b) \(\displaystyle \mathrm{CH}_{3} \mathrm{COOC}_{2} \mathrm{H}_{5} \xrightarrow{\mathrm{NaOH}} \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}+\mathrm{CH}_{3} \mathrm{COONa}\)
(c) \(\displaystyle \mathrm{CH}_{3}-\mathrm{CH}_{2} \mathrm{OH} \xrightarrow[\mathrm{H}_{2} \mathrm{SO}_{4}]{\text { Hot Conc. }} \mathrm{CH}_{2}=\mathrm{CH}_{2}+\mathrm{H}_{2} \mathrm{O}\)
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CBSE Class 10 Science past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.