Polymers
1. When lactic acid is heated, acrylic acid is formed.
i) Complete the word equation for the action of heat on lactic acid. lactic acid → ..................................... + .....................................
[1]
ii) Describe a test that would distinguish between lactic acid and acrylic acid. test ............................................................................................................... result for lactic acid ............................................................................................................... result for acrylic acid ...............................................................................................................
[3]
iii) Describe a test, other than using an indicator, which would show that both chemicals contain an acid group. test ............................................................................................................... result ...............................................................................................................
[2]
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
Extended Only
Alkenes polymerise by addition.
i) Explain the term polymerise.
[2]
ii) What is the difference between addition polymerisation and condensation polymerisation?
[2]
iii) Poly(dichloroethene) is used extensively to package food. Draw its structure. The structural formula of dichloroethene is drawn below.
[2]
This question has 4 part(s).
There are two types of polymerisation, addition and condensation.
Explain the difference between these two types of polymerisation.
This question has 4 part(s).
