11.8 Polymers
1. Extended Only
The structures of five alkenes, A, B, C, D and E, are shown.
Alkene C can be converted into a polymer.
What type of polymerisation occurs?
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
Esters are organic chemicals noted for their characteristic smells. Ethanoic acid and methanol will react to form an ester.
i) Name the catalyst needed to form an ester from ethanoic acid and methanol.
[1]
ii) Name the ester formed when ethanoic acid reacts with methanol.
[1]
iii) Draw the structure of the ester formed when ethanoic acid reacts with methanol. Show all bonds.
[2]
iv) Give the name of a polyester.
[1]
Synthetic polymers are widely used in the modern world.
Their use has brought considerable advantages to modern life as well as some disadvantages.
i) Suggest two advantages of a plastic bucket compared to a steel bucket.
[2]
ii) Name two uses of man-made fibres, such as nylon and Terylene.
[2]
iii) Describe the pollution caused by synthetic polymers.
[3]
This question has 4 part(s).
Petroleum is a source of many important chemicals.
Name two industrial processes which must take place to produce alkenes from petroleum.
