MEDIUMMCQ SINGLENEET ChemistryOrganic ChemistryAldehydes and ketonesPrevious Year Questions

Ethyl methyl ketone is obtained by heating calcium salts of (MHT CET 2010)

A.formic acid + propionic acid

B.acetic acid + propionic acid✓ Correct

C.acetic acid only

D.acetic acid + methanoic acid

Explanation

Ethyl methyl ketone is an unsymmetric ketone, so two different acids (in the form of calcium salts) are used. The structure of ethyl methyl ketone is C2H5COCH3. The structure shows the presence of four carbon atoms, thus the calcium salts must be acetic acid and propionic acid to form C2H5COCH3. Distill 2 5 2 3 2 2 5 3 3 (C H COO) Ca (CH COO) Ca 2C H COCH 2CaCO ->

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