Question

C2H4 - C2H5CI - C2H4 - C2H2 - CH3CHO​

Answer 1

Ответ:

Объяснение:

CH2=CH2 + HCl -> CH3-CH2-Cl

CH3-CH2-Cl + KOH(сп) -> CH2=CH2 + KCl + H2O

CH2=CH2 ->  CH=-CH + H2 (t, kat)

CH=-CH + H2O  -> CH3COH (t, Hg)

Answer 2

The given sequence of compounds is:

C2H4 → C2H5Cl → C2H4 → C2H2 → CH3CHO

Let's break down each compound and identify their names:

1. C2H4: This is the molecular formula for ethene, also known as ethylene. It is an unsaturated hydrocarbon with a double bond between the two carbon atoms.

2. C2H5Cl: This is the molecular formula for chloroethane. It is an alkyl halide where a chlorine atom is attached to an ethyl group.

3. C2H4: This is ethene again, the same compound as mentioned in the first step.

4. C2H2: This is the molecular formula for ethyne, commonly known as acetylene. It is an unsaturated hydrocarbon with a triple bond between the two carbon atoms.

5. CH3CHO: This is the molecular formula for acetaldehyde. It is an organic compound and the simplest form of an aldehyde. The "CH3" group represents a methyl group (-CH3), and "CHO" represents the aldehyde functional group (-CHO).

So, the sequence represents the following compounds: ethene (or ethylene), chloroethane, ethene (ethylene) again, ethyne (acetylene), and acetaldehyde.