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प्रश्न
Fill in the blank :
____________ discovered the oxygen gas.
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उत्तर
Joseph Priestly discovered the oxygen gas.
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संबंधित प्रश्न
What happens when mercuric oxide is heated?
How will you obtain dry oxygen in the laboratory?
Complete and balance the following equation
S + O2 →
Tick (√ ) the most appropriate answer.
The catalyst used in the preparation of oxygen from hydrogen peroxide is :
State any four physical properties of oxygen gas.
Describe what you will observe and write fully balanced equation when the following is introduced in a jar of oxygen.
Burning magnesium
Write fully balanced equation for the following :
SO2 + H2O →
Write fully balanced equation for the following :
Na2O + H2O →
Give reasons for the following:
oxygens finds utility in welding & cutting of metals.
Give reason for the following:
Oxidation of sulphur results in a product which turns moist blue litmus red.
