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GS Paper IUPSC Prelims 1998
Health & Medicine
Question No. 337Interactive Test Mode
00:00
+2-0.66

Q337. Match List-I with List-II and select the correct answer using the codes given below the lists: | List-I | List-II | | :--- | :--- | | A. Potassium bromide | 1. Fertiliser | | B. Potassium nitrate | 2. Photography | | C. Potassium sulphate | 3. Bakery | | D. Monopotassium tartarate | 4. Gun powder | Codes:

Match List-I with List-II and select the correct answer using the codes given below the lists:

List-IList-II
A. Potassium bromide1. Fertiliser
B. Potassium nitrate2. Photography
C. Potassium sulphate3. Bakery
D. Monopotassium tartarate4. Gun powder

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 1998 • Science and Technology

Correct Answer: Option (A) — A-2; B-4; C-1; D-3

Concept & Option Breakdown

Standard Reference Verified
  • Potassium bromide (KBr) is used as a restrainer in photographic developer solutions and photographic emulsions (A matches 2).
  • Potassium nitrate ($\text{KNO}_3$), or saltpetre, is an oxidizer in gunpowder (B matches 4).
  • Potassium sulphate ($\text{K}_2\text{SO}_4$) is a widely used potassium fertilizer (C matches 1).
  • Monopotassium tartrate (cream of tartar) is used as a leavening stabilizer in baking (D matches 3). Thus, the correct code is A-2; B-4; C-1; D-3.
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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 1998 (Q337)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (A) — A-2; B-4; C-1; D-3

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Frequently Asked Questions — UPSC Prelims 1998 Q337

What is the official answer for UPSC Prelims 1998 GS Paper I Question 337 (Science and Technology)?

The official UPSC answer key for this 1998 Science and Technology (Health & Medicine) question is Option (A): "A-2; B-4; C-1; D-3". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 1998 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?

To solve Health & Medicine questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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