CBSE Class 8 Answered
Why do we get a popping sound when we bring a burning stick near the mouth of test tube containing acids and metals?
Asked by Topperlearning User | 22 Dec, 2014, 11:05: AM
Expert Answer
When a metal reacts with acid then hydrogen gas is evolved. Therefore, the test tube containing metal and acid contains evolving hydrogen gas. When a burning stick is brought near the mouth of the test tube then the evolving hydrogen gas is burnt with a pop sound.
Answered by | 22 Dec, 2014, 01:05: PM
Application Videos
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Reaction of Metals With Oxygen
The video discusses the Reaction of Metals With Oxygen
Concept Videos
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Chemical Properties of Metals and Non-metals - 2
This video explains the reaction of metals with cold water and acids.
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