POLYMERS Quiz-11
Dear Readers,
IIT JEE exam which consists of JEE Main and JEE Advanced is one of the most important entrance exams for engineering aspirants. The exam is held for candidates who are aspiring to pursue a career in the field of engineering and technical studies.
Chemistry is important because everything you do is chemistry! Even your body is made of chemicals. Chemical reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything..
Q1. Statement 1: Buta-1, 3-diene is the monomer of GuttaPercha
Statement 2: GuttaPercha is formed through cationic addition polymerisation
:
Solution
option d GuttaPercha is synthetic rubber and its monomer is isoprene. Since isoprene has EDG, so it is prepared by cationic addition polymerisation
option d GuttaPercha is synthetic rubber and its monomer is isoprene. Since isoprene has EDG, so it is prepared by cationic addition polymerisation
Q2.Statement 1: PMMA is used for making tenses and light covers.
Statement 2: It has excellent light transmission properties.
Solution
option a Statement I is the correct explanation of statement II
option a Statement I is the correct explanation of statement II
Q3. Statement 1: Natural rubber is cis-polyisoprene.
Statement 2: trans-polyisoprene cannot be formed.
Solution
option c Statement II is incorrect, because of the presence of double bond polyisoprene can exist in two geometrical isomeric forms
option c Statement II is incorrect, because of the presence of double bond polyisoprene can exist in two geometrical isomeric forms
Q4. Statement 1: Bakelite is hard and has high melting point Statement 2: Intermolecular forces of attraction in it are H-bonding
Solution
option c It is a highly cross-linked polymer
option c It is a highly cross-linked polymer
Q5. Statement 1: Polybutadiene is an example of step-growth polymer
Statement 2: Copolymerisation of butadiene and acrylonitrile gives Buna-N
Solution
option a. Polybutadiene is an example of chain-growth polymer (addition polymerisation)
option a. Polybutadiene is an example of chain-growth polymer (addition polymerisation)
Q6. Statement 1: Styrene is more reactive than propylene towards cationic polymerization
Statement 2: The carbocation resulting from styrene is more stable than that resulting from propylene
Solution
option a Statement I is the correct explanation of A.
option a Statement I is the correct explanation of A.
Q7. Statement 1: Nylon fibresare stronger than terylenefibres
Statement 2: Intermolecular forces of attraction in terylene are H-bonding
Solution
option c Intermolecular forces of attraction in nylon are H-bonding
option c Intermolecular forces of attraction in nylon are H-bonding
Q8.Statement 1: Teflon ahs high thermal stability and chemical inertness
Statement 2: It has strong (C-F) bonds
Solution
option (a) Both statements are correct, and statements 2 is the correct explanation of statement 1
option (a) Both statements are correct, and statements 2 is the correct explanation of statement 1
Q9. Statement 1: Nylon-6 is prepared by polymerization of caprolactam.
Statement 2: It is a polyamide
Solution
option b Correct explanation is nylon-6 is condensation polymer of 6-amino hexanoic acid
option b Correct explanation is nylon-6 is condensation polymer of 6-amino hexanoic acid
Q10.Statement 1: Nylon 610 is a condensation copolymer.
Statement 2: It contains dioic acid having 6C atoms and a diamine having 10C atims.
Solution
option c
option c
