logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
Home  >>  JEEMAIN and AIPMT  >>  Chemistry  >>  Polymers
0 votes

State the temperature and pressure in the following reaction:$nCH_2=CH_2(Ethylene)\rightarrow -(CH_2-CH_2-)_n(polyethylene)$

$\begin{array}{1 1}(a)\;350-570K,1-2atm\\(b)\; 300-400K,1-2atm\\(c)\;350-570K,1000-2000atm\\(d)\;300-400K,1000-2000atm\end{array}$

Can you answer this question?
 
 

1 Answer

0 votes
Low density polythene is manufactured by heating pure ethylene to 350-570K under high pressure (1000-2000 atm) in the presence of traces of oxygen(0.03 to 0.1%)
Hence (c) is the correct answer.
answered Mar 11, 2014 by sreemathi.v
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...