This chapter is currently out of syllabus
1
JEE Main 2021 (Online) 24th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
In polymer Buna-S : 'S' stands for :
A
Sulphur
B
Styrene
C
Strength
D
Sulphonation
2
JEE Main 2021 (Online) 24th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Match List I with List II.

List I
(Monomer Unit)
List II
(Polymer)
(a) Caprolactum (i) Natural rubber
(b) 2-Chloro-1, 3-butadiene (ii) Buna-N
(c) Isoprene (iii) Nylon 6
(d) Acrylonitrile (iv) Neoprene

Choose the correct answer from the options given below:
A
(a) → (iv), (b) → (iii), (c) → (ii), (d) → (i)
B
(a) → (iii), (b) → (iv), (c) → (i), (d) → (ii)
C
(a) → (ii), (b) → (i), (c) → (iv), (d) → (iii)
D
(a) → (i), (b) → (ii), (c) → (iii), (d) → (iv)
3
JEE Main 2020 (Online) 6th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The correct match between Item - I and Item - II is :

Item - I Item - II
(a) Natural rubber (I) 1, 3-butadiene + styrene
(b) Neoprene (II) 1, 3-butadiene + acrylonitrile
(c) Buna-N (III) Chloroprene
(d) Buna-S (IV) Isoprene
A
(a) - (IV), (b) - (III), (c) - (II), (d) - (I)
B
(a) - (III), (b) - (IV), (c) - (I), (d) - (II)
C
(a) - (III), (b) - (IV), (c) - (II), (d) - (I)
D
(a) - (IV), (b) - (III), (c) - (I), (d) - (II)
4
JEE Main 2020 (Online) 6th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Consider the Assertion and Reason given below.

Assertion (A) : Ethene polymerized in the presence of Ziegler Natta Catalyst at high temperature and pressure is used to make buckets and dustbins.

Reason (R) : High density polymers are closely packed and are chemically inert.

Choose the correct answer from the following:
A
Both (A) and (R) are correct and (R) is the correct explanation of (A).
B
Both (A) and (R) are correct but (R) is not the correct explanation of (A).
C
(A) is correct but (R) is wrong.
D
(A) and (R) both are wrong.
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