1
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following are synthetic rubbers?

(i) Terylene

(ii) Buna-S

(iii) Buna-N

(iv) Neoprene

(v) Polyacrylonitrile

A

(i), (ii) and (iii)

B

(ii), (iv) and (v)

C

(ii), (iii) and (iv)

D

(i), (ii) and (iv)

2
TS EAMCET 2020 (Online) 10th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following vinyl derivatives is the most reactive towards anionic polymerisation?

A

$\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CH}_3$

B

$\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2-\mathrm{OE}$

C

$\mathrm{CH}_2=\mathrm{CH}-\mathrm{Cl}$

D

$\mathrm{CH}_2=\mathrm{CH}-\mathrm{C} \equiv \mathrm{N}$

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