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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.
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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
Indicate which of the following statement is true and which is false:
The reaction between hydrogen and nitrogen to form ammonia is reversible.
Give reasons for the following:
Hydrogen can be used as a fuel.
Write two physical properties of hydrogen.
Discuss the use of hydrogen as a fuel ?
Under what conditions can hydrogen be made to combine with oxygen?
Name the products and write the equation for the reaction.
Complete and balance the equation:
Conversion of hydrogen to -
Water - 2H2 + O2 → ________
Complete and balance the equation:
Conversion of hydrogen to -
Hydrogen chloride - H2 + Cl2 → ________
Complete and balance the equation:
Conversion of hydrogen to -
Hydrogen sulphide - H2 + S → ________
Complete and balance the equation:
Hydrogen in metallurgy - reduction of
Iron [III] oxide - Fe2O3 + 3H2 → ________ + ______
State the use of hydrogen –
In the extraction of metals
