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MHT CET2010ChemistryAldehydes and Ketones

Ethyl methyl ketone is obtained by heating calcium salts of

Options

  1. Aformic acid + propionic acid
  2. Bacetic acid + propionic acid
  3. Cacetic acid only
  4. Dacetic acid + methanoic acid

Correct answer

B. acetic acid + propionic acid

Step-by-step solution

Ethyl methyl ketone is an unsymmetric ketone, so two different acids (in the form of calcium salt) are used. The structure of ethyl methyl ketone is C ₂ H ₅ COCH ₃ The structure shows the presence of 4 carbon atoms, thus the calcium salts must be of acetic acid and propionic acid to form C ₂ H ₅ COCH ₃ . array r ( C ₂ H ₅ COO )₂ Ca + ( CH ₃ COO )₂ Ca Distill C ₂ H ₅ COCH ₃+ CaCO ₃ array

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