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UPSC 2004: Salts of which of the following elements provide colours to fireworks?
(a)Zinc and sulphur
(b)Potassium and mercury
(c)Strontium and barium
(d)Chromium and nickel
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Not attemptedCorrect Answer: (c) Strontium and barium
Strontium salts give deep reds and barium salts give bright greens in fireworks; therefore these two elements are used for colouring pyrotechnic displays. The element pairs in the other options do not provide the characteristic display colours. ([usgs.gov](https://www.usgs.gov/media/images/what-minerals-produce-colors-fireworks?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2004 Science & Technology question?▼
The correct answer is option (c): Strontium and barium. 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 2004, GS Paper 1, as Question 129. It falls under Science & Technology > Chemistry.
What is the difficulty level of this UPSC question?▼
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
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.