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Chapter 3: Q. 26 E-a (page 88)

Draw the structures of the following molecules:

(a) Biacetyl, C4H6O2, a substance with the aroma of butter; it containsno rings or carbon鈥揷arbon multiple bonds.

Short Answer

Expert verified

Biacetyl come under the category of organic compound and has the formula C4H6O2. It is a vicinal diketone comprising two C=O groups.

Step by step solution

01

Biacetyl

Biacetyl come under the category of organic compound and has the formula C4H6O2. It is a vicinal diketone comprising two C=O groups.

02

Structure of biacetyl

(a)The structure of biacetyl can be found with the help of degree of unsaturation of the molecule. The degree of unsaturation of the molecule can be found as:

Degree of unsaturation=2C + 2 + N - H - X2=2脳4+2+0-6-02=10-62=2

Here the C, N, H and X denote the number of carbon, nitrogen, hydrogen and halogen.

The compound has a degree of unsaturation of two. But according to the problem, the compound does not contain rings or carbon-carbon multiple bonds.

The structure of biacetyl can be given as:

The other possible structures of biacetyl can be given as:

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