Question:

Instructions: The passage below consists of six sentences. The first and the sixth sentences are given (S1, S6). The middle four sentences have been removed and jumbled up, labelled P, Q, R and S. Find the proper order for the four sentences.

S1: Metals are today being replaced by polymers in many applications.
P: Above all, they are cheaper and easier to process, making them a viable alternative to metals.
Q: Polymers are essentially long chains of hydrocarbon molecules.
R: Today, polymers as strong as metals have been developed.
S: These have replaced the traditional chromium-plated metallic bumpers in cars.
S6: Many Indian Institutes of Science and Technology run special programmes on polymer science.

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Q defines polymers right after the intro; R and P both explain why they're viable, with P's phrase “alternative to metals” concluding that point before S gives a concrete example.
Updated On: Jul 15, 2026
  • QRSP
  • RSQP
  • RQSP
  • QRPS
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The Correct Option is D

Solution and Explanation

Step 1: Find the sentence that follows S1 naturally.
S1 introduces polymers as metal replacements. Q (“Polymers are essentially long chains of hydrocarbon molecules”) naturally follows, defining what polymers actually are.

Step 2: Find what follows the definition.
R (“Today, polymers as strong as metals have been developed”) builds on the definition by describing a key property (strength) that makes them viable substitutes.

Step 3: Find the next logical link.
P (“Above all, they are cheaper and easier to process, making them a viable alternative to metals”) adds a second reason (cost and ease of processing) to the strength already mentioned in R, both reasons building toward “viable alternative to metals”.

Step 4: Find the concluding example.
S (“These have replaced the traditional chromium-plated metallic bumpers in cars”) gives a concrete real-world example of polymers replacing metal, which is the natural conclusion after establishing why they are viable alternatives.

Step 5: Check the full sequence.
S1 (introduces polymers) → Q (defines polymers) → R (strength property) → P (cost/processing advantage, concluding “viable alternative to metals”) → S (concrete example: car bumpers) → S6 (institutes running polymer programmes). This flows logically from general introduction to definition, to properties, to a concrete example.

Step 6: Final Answer.
The correct order is Q, R, P, S, so option D is correct.
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