Multiple choice

Match the entries in Column-I (polymer additive) with those in Column-II (used as)- Group-I Group-II P. 2-hydroxybenzophenone 1. UV stabiliser Q. 2-mercaptobenzothiazole 2. Accelerator R. Quinophthalone 3. Colorant S. Dibromoneopentyl glycol 4. Flame retardant

  1. P-1, Q-2, R-3, S-4

  2. P-1, Q-3, R-2, S-4

  3. P-2, Q-1, R-4, S-3

  4. P-2, Q-3, R-4, S-1

  5. P-3, Q-1, R-4, S-2
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A Correct answer
Explanation

2-hydroxybenzophenone is used as UV stabiliser for polymers. 2-mercaptobenzothiazole is used as accelerator in vulcanisation. Quinophthalone (greenish yellow) is used as colorant in vinyls and polyolefins. Dibromoneopentyl glycol (DBNPG) is a brominated flame retardant commonly used as additives during the manufacture of plastic polymers.

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