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Which of the following emits light when exposed to oxy – hydrogen flame?
Option: 1
Ca (OH) 2
Option: 2
Ca (HCO3)2
Option: 3
CaCO3
Option: 4
CaO
Answers (1)
CaO when exposed to oxy – hydrogen flame emits light known as lime light.
Therefore, option(4) is correct.
View full answer
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