Which is correct example of condensation polymer?

• Nylon, Buna-S

• Teflon, Buna-N

• Nylon 6,6, Dacron

• Neoprene, Buna-S

Non-stick cookwares generally have a coating of a polymer, whose monomer is

• CH₂ = CH₂

• CH₂ = CHCN

• CH₂ = CHCl

• CF₂ = CF₂

The formula of nylon is :

• -[OC(CH2)₆-CONH-(CH2)4-NH]_n-

• -[OC(CH₂)₄-CONH-(CH₂)₆-NH]_n-

• -[OC(CH₂)₃-CONH-(CH₂)₆-NH]_n-

• [OC-(CH₂)₂-CONH-(CH₂)₆-NH]_n-

Isoprene is

• 3-methyl-1,2-butadiene

• 2-methyl-1,3-butadiene

• 3-chloro-1,2-butadiene

• 2-chloro-1,3-butadiene.

An ester linkage is present in :

• nylon - 6

• nylon - 6 , 6

• dacron

• rayon

186.

Artificial silk is :

• nylon - 6

• rayon

• nylon 66

• none of these

Which of the following is common example of fibres ?

• Bakelite

• Buna - S

• Nylon - 66

• PVC

Assertion : Ebonite is highly vulcanised rubber.

Reason : Perlon is used in the manufacture of fibres.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false.

Which is not a polymer?

• Sucrose

• Enzyme

• Starch

• Teflon

Assertion : Teflon has high thennal stability and chemical inertness.

Reason : Teflon is a thermoplastic.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.