Take 5 ml hydrogen peroxide (H2O2) solution in a test tube. Add a litt

1.	Take 5 ml hydrogen peroxide (H2O2) solution in a test tube. Add a little manganese dioxide to it. Bring a burning matchstick into the test tube. What do you observe? Find reason for your observation?
Answer» Observation: The burning matchstick flares up. Reason: In the presence of manganese dioxide, hydrogen peroxide decomposes quickly and liberates oxygen gas. The presence of oxygen flaring up of the match stick. 2H₂O₂ → 2H₂O + O₂

Take 5 ml hydrogen peroxide (H2O2) solution in a test tube. Add a little manganese dioxide to it. Bring a burning matchstick into the test tube. What do you observe? Find reason for your observation?

Answer»

Observation: The burning matchstick flares up.

Reason: In the presence of manganese dioxide, hydrogen peroxide decomposes quickly and liberates oxygen gas. The presence of oxygen flaring up of the match stick.

2H₂O₂ → 2H₂O + O₂

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Take 5 ml hydrogen peroxide (H2O2) solution in a test tube. Add a little manganese dioxide to it. Bring a burning matchstick into the test tube. What do you observe? Find reason for your observation?

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