JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Polystyrene, Dacron and orlon are classified respectively as

(A)Chain growth; step growth; step growth
(B)Chain growth; chain growth; step growth
(C)Chain growth; step-growth; chain growthCorrect
(D)Step growth; step growth; chain growth

Answer: (C)

Solution

Polystyrene and Orlon (polyacrylonitrile) are both formed by chain (addition) polymerization of a vinyl monomer, while Dacron is formed by step-growth

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Question ID VK-151461