Q. The elements that provide colour to fireworks are

  • (A) chromium and nickel
  • (B) strontium and barium
  • (C) zinc and sulphur
  • (D) potassium and mercury
✅ Correct Answer: (B) strontium and barium

Published by Vishal Gupta ⭐ 7.73K Points at 21-Dec-2021 04:59 pm in Chemistry

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