Question

$S_1$: 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 a 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.
$S_6$: Many Indian institutes of science and Technology run special programmes on polymer science.
The proper sequence should be:

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

Answer 1

The correct option is A QRSP

After the replacement of metals into polymers, we should know about the polymers.

So, Q will be immediately after $S_1$.

Then the development of new polymers i.e. R.

Then the benefits of new polymers and that is being provided in S.

And then P.

Thus, the proper sequence formed is Q-R-S-P.