Question

An alkene upon ozonolysis gives 2 moles of formaldehyde and 1 mole of glyoxal what is the name of alkene ?

Answer 1

Buta 1,3-diene is an alkene on reductive ozonolysis that produces two moles of formaldehyde and one mole of glyoxal.

Answer 2

Answer:

1, 3 butadiene upon ozonolysis gives 2 moles of formaldehyde and 1 mole of glyoxal.

Explanation:

Alkenes react with ozone to give ozonide, which on reduction with Zn-H₂O cleaved to give a smaller molecule. This reaction helps to decide the structure of the alkene and the location of the double bond.

To decide the structure of alkene from ozonolysis products, bring the products together in such a way that their O atoms are face to face, and replace O with a C=C bond.

1, 3 butadiene upon ozonolysis gives 2 moles of formaldehyde and 1 mole of glyoxal. The reaction is as follows.

CH₂=CH-CH=CH₂ + O₃ → 2HCHO + CHO-CHO