S1: Metals are today being replaced by polymers in many applications.nP : Above all, they are cheaper and easier to process making them a viable alternative to metals.nQ : Polymers are essentially a long chains of hydrocarbon molecules.nR : Today polymers as strong as metals have been developed.nS : These have replaced the traditional chromium-plated metallic bumpers in cars.nS6: Many Indian Institutes of science and Technology run special programmes on polymer science.nThe Proper sequence should be:

• A. QRSP
• B. RSQP
• C. RQSP
• D. QRPS