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UPSC 2000: Match List I with List II and select the correct answer using the codes given below the Lists: List I I. German Silver II. Solder III. Bleaching Powder IV. Hypo List II A) Tin B) Nickel C) Sodium D) Chlorine Codes:
(a)I-A, II-B, III-D, IV-C
(b)I-B, II-A, III-C, IV-D
(c)I-A, II-B, III-C, IV-D
(d)I-B, II-A, III-D, IV-C
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Not attemptedCorrect Answer: (d) I-B, II-A, III-D, IV-C
German silver is an alloy of copper-zinc-nickel (so matches with Nickel); solder is principally a tin-lead alloy (Tin); bleaching powder is calcium hypochlorite that liberates chlorine (Chlorine); and ‘hypo’ refers to sodium thiosulphate (Sodium). The only option giving the sequence I-B, II-A, III-D, IV-C is (d). ([focusias.in](https://focusias.in/upsc-general-studies-prelims-paper-2000/))
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Frequently Asked Questions
What is the correct answer to this UPSC 2000 Science & Technology question?▼
The correct answer is option (d): I-B, II-A, III-D, IV-C. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Chemistry question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2000, GS Paper 1, as Question 108. It falls under Science & Technology > Chemistry.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Chemistry?▼
UPSC has asked 53 questions from Chemistry (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.