JEE Main 2022 (Online) 30th June Morning Shift | Polymers Question 21 | Chemistry

1

JEE Main 2022 (Online) 30th June Morning Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Match List - I with List - II.

	List-I Polymer
(a)	Acrilan	(i)
(b)	Neoprene	(ii)
(c)	Polystyrene	(iii)
(d)	Buna-N	(iv)

Choose the correct match from the options given below :

A

(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

B

(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)

C

(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)

D

(a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)

2

JEE Main 2022 (Online) 29th June Evening Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Dacron is an example of polyester polymer.

Reason R : Dacron is made up of ethylene glycol and terephthalic acid monomers.

In the light of the above statements, choose the most appropriate answer from the options given below.

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 not correct.

D

A is not correct but R is correct.

3

JEE Main 2022 (Online) 29th June Morning Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

The polymer, which can be stretched and remains its original status on releasing the force is

A

Bakelite.

B

Nylon 6, 6.

C

Buna-N.

D

Terylene.

4

JEE Main 2022 (Online) 28th June Evening Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Given below are two statements, one is Assertion (A) and other is Reason (R).

Assertion (A) : Natural rubber is a linear polymer of isoprene called cis-polyisoprene with elastic properties.

Reason (R) : The cis-polyisoprene molecules consist of various chains held together by strong polar interactions with coiled structure.

In the light of the above statements, choose the correct one from the options given below :

A

Both (A) and (R) are true and (R) is the correct explanation of (A).

B

Both (A) and (R) are true but (R) is not the correct explanation of (A).

C

(A) is true but (R) is false.

D

(A) is false but (R) is true.