Question

how will you prepare acetaldehyde from propylene​

Answer 1

Answer:

Acetylene in the presence of 42% sulphuric acid followed by mercury sulphate produce acetaldehyde.

Explanation:

Answer 2

Answer:

It can be done by reductive ozonolysis i.e, O3/Zn

C-C=C → C-Cho + hcho

Or for single product

Antimarkonikov hbr+h2o2 product- c-c=c-br

KCN product— c-c=c-cn

nano2+hcl (0–5°C) product c-c=c-cN2+Cl- (diazoniun ion)

c2h5oh product→c-c=c-c

O3/Zn so final product is 2c-cho (tadaaa)