JEE Main + Advanced

Mock Test 1 — Polymers

15 questions • 60 minutes • auto-graded with full solutions

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Section A — MCQ (Single Correct)

Question 1

Polymer is:

Question 2

Polyethylene is:

Question 3

Nylon-66 has linkage:

Question 4

Bakelite is:

Question 5

Free radical polymerization of vinyl chloride:

Question 6

Ziegler-Natta gives:

Question 7

Vulcanization improves:

Question 8

Teflon contains:

Question 9

Glyptal is from:

Question 10

PET (Dacron) is used in:

Section B — Integer Type

Question 11 — Integer answer

Number of monomers in homopolymer (per repeating unit, typically):

Enter an integer value.

Question 12 — Integer answer

Carbons per monomer in ethylene:

Enter an integer value.

Question 13 — Integer answer

Number of -OH groups per glycerol molecule:

Enter an integer value.

Section C — Assertion & Reasoning

Question 14 — Assertion / Reason

Assertion (A): Bakelite cannot be remolded after curing. Reason (R): It is a thermosetting polymer with extensive 3D cross-linking; reheating decomposes rather than softens it.

Question 15 — Assertion / Reason

Assertion (A): Natural rubber becomes soft and sticky in summer. Reason (R): Natural rubber has weak intermolecular forces between linear chains; chains slide past each other on heating.