Question

give a chemical equation for addition of water on propyne.

Answer 1

Answer:

A typical addition reaction may be illustrated by the hydrochlorination of propene (an alkene), for which the equation is CH 3 CH = CH 2 + HCl → CH 3 C + HCH 3 + Cl − → CH 3 CHClCH 3.

Explanation:

Answer 2

Addition of water on propyne will give propanone.

Explanation:

•  when propyne reacts with water in the presence of $H2SO4/HgSO4$

• Propyne is hydrolyzed to give propanone.

• Propanone is a ketone compound.

• It is an unsymmetrical molecule.

• It obeys markownikows rule.

$CH$≡$CH ------ dil HgSO4/H2SO4 ----CH3COCH3$

Propyne                                                                       Propanone

• Mercuric sulfate and sulphuric acid is used for alkyne hydration

• Both these compounds will be used as catalysts and it will increase the rate of reaction
• Here in alkyne hydration both mercuric sulfate and sulphuric acid is used because in alkene hydration only sulphuric acid is used where the reaction takes place slowly, but due to the presence of mercuric sulfate the reaction becomes fast.