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प्रश्न
What happens when Magnesium burns in oxygen ? Also give the balanced chemical equation for the reaction.
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उत्तर
Magnesium bums with a bright dazzling light, forming the white powder of magnesium oxide.
2Mg + O2 → 2MgO + hea
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संबंधित प्रश्न
What is the role of manganese dioxide in the preparation of oxygen?
Why is hydrogen peroxide preferred in the preparation of oxygen gas ?
Name the three types of oxidation processes. In which of these large amount of heat and light energy are produced?
Give balanced equation to obtain oxygen from Silver oxide.
State the precautions while preparing oxygen in the labo-ratory.
Statement given below is incorrect. Write the correct statement :
The oxygen gas turns moist blue litmus red.
Write ‘True’ or ‘False’ in front of following statement.
Liquid oxygen is used for burning fuel in spaceships.
(a) Starting from hydrogen peroxide how is oxygen gas prepared in laboratory?
(b) What is the function of manganese dioxide?
(c) Write fully balanced equation for the liberation of oxygen from hydrogen peroxide.
(d) Why is the above method preferred to any other method?
Give reason for the following:
Oxygen gas does not affect moist blue litmus paper, but carbon dioxide turns it slightly pink.
Phosphorous bums with suffocating smell and gives ______.
