Question

C->ch4->ch3cl->c2h6->c2h5cl->c2h5oh->ch2=ch2

Answer 1

Ответ:

ответ смотри во вложении

Answer 2

The given sequence of reactions is a possible pathway for the conversion of C (starting material) into CH2=CH2 (final product), with the intermediates CH4, CH3Cl, C2H6, C2H5Cl, and C2H5OH.

Here is a brief description of each step:

1. C --> CH4: This is a reduction reaction where C (carbon) is reacted with H2 (hydrogen gas) under high pressure and temperature in the presence of a catalyst to produce methane (CH4).

2. CH4 --> CH3Cl: This is a substitution reaction where one hydrogen atom in methane is replaced by a chlorine atom to form chloromethane (CH3Cl). This reaction is carried out in the presence of chlorine gas (Cl2) and UV light.

3. CH3Cl --> C2H6: This is a substitution reaction where one chlorine atom in chloromethane is replaced by a hydrogen atom to form ethane (C2H6). This reaction is carried out in the presence of zinc metal (Zn) and hydrochloric acid (HCl).

4. C2H6 --> C2H5Cl: This is a substitution reaction where one hydrogen atom in ethane is replaced by a chlorine atom to form chloroethane (C2H5Cl). This reaction is carried out in the presence of chlorine gas (Cl2) and UV light.

5. C2H5Cl --> C2H5OH: This is a substitution reaction where one chlorine atom in chloroethane is replaced by a hydroxyl group (-OH) to form ethanol (C2H5OH). This reaction is carried out in the presence of sodium hydroxide (NaOH) and water (H2O).

6. C2H5OH --> CH2=CH2: This is an elimination reaction where ethanol is dehydrated to form ethylene (CH2=CH2). This reaction is carried out in the presence of a catalyst such as alumina (Al2O3) or sulfuric acid (H2SO4).

Overall, this sequence of reactions involves various organic chemistry concepts such as reduction, substitution, and elimination reactions.