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प्रश्न
Tick (√ ) the most appropriate answer.
When sulphur burns in oxygen, the colour of the flame is :
विकल्प
dazzling white
golden yellow
parrot green
brilliant blue
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उत्तर
brilliant blue
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संबंधित प्रश्न
The most abundant element in the earth’s crust.
A chemical called oxygenated water.
The natural way of adding oxygen to air which involves green plants is called
Why is potassium chlorate is not used for laboratory preparation of oxygen ?
State the precautions while preparing oxygen in the labo-ratory.
State two characteristics of Acidic oxides.
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.
Give reasons for the following:
oxygens finds utility in welding & cutting of metals.
