Question

C2H6→C2H4→C2H5Br→C2H5OH​

Answer 1

Ответ:

C2H6 = C2H4 + H2

C2H4 + HBr = C2H5Br

C2H5Br + H2O = C2H5OH + HBr

Answer 2

The chemical reactions you've listed are a series of transformations from ethane (C2H6) to ethanol (C2H5OH). Let's break down each step:

1. C2H6 (ethane) → C2H4 (ethylene):

   • This transformation typically involves the removal of two hydrogen atoms from each ethane molecule to form a double bond between the two carbon atoms. This is done using a process such as thermal cracking or catalytic cracking.

2. C2H4 (ethylene) → C2H5Br (ethyl bromide):

   • In this step, ethylene (C2H4) can be converted to ethyl bromide (C2H5Br) through a halogenation reaction. Ethylene reacts with bromine (Br2) in the presence of a catalyst, typically a peroxide, to add a bromine atom to each carbon atom, resulting in the formation of ethyl bromide.

3. C2H5Br (ethyl bromide) → C2H5OH (ethanol):

   • Finally, ethyl bromide (C2H5Br) can be converted to ethanol (C2H5OH) through a nucleophilic substitution reaction. Ethyl bromide reacts with a strong nucleophile, such as a hydroxide ion (OH-), to replace the bromine atom with a hydroxyl group, resulting in the formation of ethanol.

So, these are the steps involved in transforming ethane into ethanol through a series of chemical reactions. Please note that specific reaction conditions and catalysts may vary in practice, but this is the general process.