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JIPMER 2015
Exam
JIPMER
Year
2015
Subject
Chemistry
Chapter
Polymers

JIPMER 2015 · Chemistry · Polymers

Buna- N , a synthetic rubber is copolymer of

Buna- N , a synthetic rubber is copolymer ofBuna- N , a synthetic rubber is copolymer ofBuna- N , a synthetic rubber is copolymer ofBuna- N , a synthetic rubber is copolymer of

Options

  1. AH2C=CH−CH=CH2 and H5C6−CH=CH2\begin{aligned} & \mathrm{H}_2 \mathrm{C}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}_2 \text{ and } \\ & \qquad \mathrm{H}_5 \mathrm{C}_6-\mathrm{CH}=\mathrm{CH}_2\end{aligned}
  2. BH2\mathrm{H}_2\mathrm{C}=\mathrm{CH}−CN-\mathrm{CN} and H2\mathrm{H}_2\mathrm{C}=\mathrm{CH}−-\mathrm{CH}=\mathrm{CH}2_2
  3. CA ray parallel to principal axis is incident at 30^ ^ from normal on concave mirror having radius of curvature R . The
  4. DA ray parallel to principal axis is incident at 30^ ^ from normal on concave mirror having radius of curvature R . The

Correct answer

B. H2\mathrm{H}_2\mathrm{C}=\mathrm{CH}−CN-\mathrm{CN} and H2\mathrm{H}_2\mathrm{C}=\mathrm{CH}−-\mathrm{CH}=\mathrm{CH}2_2

Step-by-step solution

Buna- N is a copolymer of butadiene and acrylonitrile. Buna- N , a synthetic rubber is copolymer of
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