KCET · Chemistry · Hydrocarbons
Acetic acid is treated with \( \mathrm{Ca}(\mathrm{OH})_{2} \) and the product so obtained is subjected to dry
distillation. The final product is
- A othanal
- B propanal
- C propanone
- D ethanol
Answer & Solution
Correct Answer
(C) propanone
Step-by-step Solution
Detailed explanation
When acetic acid reacts with slaked lime, calcium acetate is formed, which on dry distillation produces ketone.
\( 2 \mathrm{CH}_{3} \mathrm{COOH}+\mathrm{Ca}(\mathrm{OH})_{2} \rightarrow\left(\mathrm{CH}_{3} \mathrm{COO}\right)_{2} \mathrm{Ca}+2 \mathrm{H}_{2} \mathrm{O} \)

\( 2 \mathrm{CH}_{3} \mathrm{COOH}+\mathrm{Ca}(\mathrm{OH})_{2} \rightarrow\left(\mathrm{CH}_{3} \mathrm{COO}\right)_{2} \mathrm{Ca}+2 \mathrm{H}_{2} \mathrm{O} \)

See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The major product of the following reaction is \(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH} \underset{\text { Excess }}{\stackrel{\mathrm{HBr}}{\longrightarrow}}\) ProductKCET 2021 Medium
- The \(\mathrm{C}-\mathrm{H}\) bond and \(\mathrm{C}-\mathrm{C}\) bond in ethane are formed by which of the following types of overlap?KCET 2012 Easy
- The distinguishing test between methanoic acid and ethanoic acid isKCET 2015 Medium
- Helium is used in balloons in place of hydrogen because it isKCET 2008 Easy
- \[
\mathrm{P} \stackrel{\mathrm{H}_{2} / \mathrm{Pd}-\mathrm{BaSO}_{4}}{\rightarrow} \mathrm{Q} \stackrel{\text { (i) conc. } \mathrm{NaOH}}{\rightarrow} \mathrm{R}+\mathrm{S}
\]
\( R \) and \( S \) form benzyl benzoate when treated with each other. Hence, \( P \) isKCET 2019 Hard - An organic compound on heating with \(\mathrm{CuO}\) produces \(\mathrm{CO}_{2}\) but no water. The organic compound may beKCET 2009 Easy
More PYQs from KCET
- The chemical substances which are produced by some microbes which can kill or retard the growth of other microbes are known asKCET 2024 Hard
- In Prokaryotes the glycocalyx when it is thick is calledKCET 2015 Hard
- Peroxide effect is observed with the addition of HBr but not with the addition of HI to unsymmetrical alkene becauseKCET 2021 Hard
- In the electrolysis of aqueous sodium chloride solution, which of the half cell reaction will occur
at anode?KCET 2017 Medium - The IUPAC name of

isKCET 2012 Easy - A colloidal solution is subjected to an electric field than colloidal particles more towards anode. The amount of electrolytes of \(\mathrm{BaCl}_{2}, \mathrm{AlCl}_{3}\) and \(\mathrm{NaCl}\) required to coagulate the given colloid is in the orderKCET 2021 Medium