|
Answer» 
Write any three PROPERTIES of plastic - These are so strong.
- Easy to MANUFACTURE and durable.
- These are AFFORDABLE for all means at low cost.
- They are chrmically unreactive.
- Poor conducturs of heat and electricity.
_____________________| Additional details |- Plastic is discovered by GERMAN Chenist Christian Schonbien.
- It has been discovered at 1846.
- To say truth,it was accidently discovered.
- He was experimenting in the kitchen and accidently he splited a mixture of sulphuric and nitric acid.
- To clean it he took a cloth and then he kept on STOVE cloth was disappearedand then plastic has started.
- It got it'sname by plastikos which means mould.from greek word.
|