Question 1 What are petrochemicals?Give example? Question 2 Why petrochemicals are important? Question 3 What is black gold? Question 4 What is a major cause of air pollution? Question 5 Write the various steps for minimising the wastage of petrol or diesel while driving? Question 6 Why should we use fossil fuels only when absolutely … [Read more...] about Petrochemicals
petrochemicals
Polyester
Question 1 Which synthetic fibre contains the organic group similar to those which give fruits their sweet smell? Question 2 To which kind of synthetic fibres does terylene belong? Question 3 What is polyester? Question 4 Name a popular polyester? Question 5 What are esters? Question 6 Polyester is a thermoplastic polymer. Discuss? Question 7 What is a polycot? Question … [Read more...] about Polyester