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प्रश्न
Give reasons for the following:
Hydrogen can be used as a fuel.
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उत्तर
Because of its high heat of combustion, hydrogen is used as a fuel. Coal gas, water gas (CO + H2) and liquid hydrogen are some significant hydrogen-based fuels. Liquid hydrogen is used as a rocket fuel. Hydrogen can become the mass fuel of the future, replacing the hydrocarbons. In addition, hydrogen is a pollution-free fuel.
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संबंधित प्रश्न
Write two physical properties of hydrogen.
What is hydrogenation?
Discuss the occurrence of hydrogen in the universe and on the earth ?
Under what conditions can hydrogen be made to combine with nitrogen?
Name the products and write the equation for the reaction.
Choose terms from the options given in brackets to complete this sentence.
Hydrogen is ………………… soluble in water.
(sparingly, highly, moderately)
Complete and balance the equation:
Conversion of hydrogen to -
Ammonia - N2 + 3H2 ⇌ ______
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 hydrogenation of oil and coal
State the use of hydrogen –
In the extraction of metals
