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प्रश्न
With reference to the uses of hydrogen, give reason for the following:
A mixture of hydrogen & oxygen on burning, find application in welding & cutting metals.
उत्तर
Hydrogen and oxygen mixture on burning produces a high temperature upto 2800°C which is used for welding and cutting of metals.
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संबंधित प्रश्न
Give reasons for the following:
Hydrogen can be used as a fuel.
Discuss the occurrence of hydrogen in the universe and on the earth ?
Discuss the use of hydrogen as a fuel ?
Under what conditions can hydrogen be made to combine with nitrogen?
Name the products and write the equation for the reaction.
State the following pertaining to the physical properties of hydrogen: Solubility in water
With reference to the uses of hydrogen, give reason for the following:
Hydrogen is not used in air balloons
Complete and balance the equation:
Conversion of hydrogen to -
Hydrogen chloride - H2 + Cl2 → ________
Complete and balance the equation:
Conversion of hydrogen to -
Ammonia - N2 + 3H2 ⇌ ______
State the use of hydrogen –
In hydrogenation of oil and coal
State the use of hydrogen –
In the extraction of metals
