Question

составить уравнения реакций , с помощью которых можно осуществить цепочку превращений: C //C2H4->C2H5OH->CH3C-O-C2H5 /C2H6если можете напишите, как химическим способом различить многоатомный и одноатомный спирт.

Answer 1

 

C2H6=(никель, платина,температура)=С2H4+H2

C2H4+H2O=>C2H5OH

C2H5OH+CH3COOH=CH3COOC2H5+H2O

 

 

Answer 2

Chemical Reactions Equations:

To create a chain of reactions leading from C to C2H6, we can start with the following transformations:

1. Formation of C2H4 from C: - The reaction equation for the formation of C2H4 from C is: ``` C + O2 → CO2 2CO2 → C2H4 + 2H2O ```

2. Conversion of C2H4 to C2H5OH (Ethanol): - The reaction equation for the conversion of C2H4 to C2H5OH is: ``` C2H4 + H2O → C2H5OH ```

3. Conversion of C2H5OH to CH3C-O-C2H5 (Diethyl Ether) and C2H6: - The reaction equation for the conversion of C2H5OH to CH3C-O-C2H5 and C2H6 is: ``` 2C2H5OH → CH3C-O-C2H5 + C2H6 ```

Differentiating Multivalent and Monovalent Alcohols:

To chemically differentiate between multivalent and monovalent alcohols, we can use the Lucas test. The Lucas test is a chemical test used to distinguish between primary, secondary, and tertiary alcohols based on their reactivity with Lucas reagent (concentrated hydrochloric acid and zinc chloride).

Procedure for Lucas Test: 1. Primary Alcohol (Monovalent): - A primary alcohol reacts slowly with Lucas reagent and forms a cloudy solution after a few minutes. 2. Secondary Alcohol (Multivalent): - A secondary alcohol reacts relatively quickly with Lucas reagent and forms a cloudy solution almost immediately. 3. Tertiary Alcohol (Multivalent): - A tertiary alcohol reacts very quickly with Lucas reagent and forms an immediate and distinct cloudy solution.

By performing the Lucas test, we can observe the differences in reactivity and cloudiness of the solutions to differentiate between multivalent and monovalent alcohols.

I hope this information helps! If you have any more questions or need further clarification, feel free to ask.