Which among the following would cause the bright red colour due to bursting of crackers?
Detailed Explanation:
Strontium compounds (like strontium carbonate) emit a bright red colour when heated in fireworks. The heat excites electrons in strontium atoms, which release energy as red light when returning to ground state.
Sodium produces yellow, sulphur burns but doesn't produce metal flame colours, and magnesium gives white light.
Therefore, strontium is responsible for bright red colour in crackers, making Option 4 the correct answer.
Question 3 of 3 Organic Chemistry Basics
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Which among the following is known as quicklime?
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