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GS Paper IUPSC Prelims 2006
Health & Medicine
Question No. 384Interactive Test Mode
00:00
+2-0.66

Q384. Assertion (A): Cellulose is used in making shatter-proof glass. Reason (R): Polysaccharides are not soluble in water. Codes:

Assertion (A): Cellulose is used in making shatter-proof glass. Reason (R): Polysaccharides are not soluble in water.

Codes:

Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2006 • Science and Technology

Correct Answer: Option (A) — Both ‘A’ and ‘R’ are individually true and ‘R’ is the correct explanation of ‘A’.

Concept & Option Breakdown

Standard Reference Verified
  • Assertion (A) is true: Cellulose derivatives such as cellulose acetate and cellulose nitrate have high tensile strength, transparency, and impact resistance, and are used as laminating interlayers in making safety (shatter-proof) glass.
  • Reason (R) is true and explains A: Structural polysaccharides like cellulose possess extensive intermolecular hydrogen bonding forming tightly packed crystalline microfibrils, making them insoluble in water and moisture-resistant. This stability and water insolubility are fundamental properties that allow cellulose-based layers to provide durable structural integrity in laminated shatter-proof glass.
Elimination Heuristic & Exam Approach

Cellulose derivatives provide impact resistance and structural durability without degrading in moisture due to their insoluble polymeric nature.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2006 (Q384)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (A) — Both ‘A’ and ‘R’ are individually true and ‘R’ is the correct explanation of ‘A’.

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Frequently Asked Questions — UPSC Prelims 2006 Q384

What is the official answer for UPSC Prelims 2006 GS Paper I Question 384 (Science and Technology)?

The official UPSC answer key for this 2006 Science and Technology (Health & Medicine) question is Option (A): "Both ‘A’ and ‘R’ are individually true and ‘R’ is the correct explanation of ‘A’.". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2006 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Health & Medicine". You can explore all repeated questions from Health & Medicine in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Health & Medicine UPSC Prelims question using option elimination?

Cellulose derivatives provide impact resistance and structural durability without degrading in moisture due to their insoluble polymeric nature.

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