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प्रश्न
Under what conditions can hydrogen be made to combine with nitrogen?
Name the products and write the equation for the reaction.
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उत्तर
Three volumes of hydrogen and one volume of nitrogen react at temperature 450-500°C and pressure 200-900 atm in the presence of a finely divided iron catalyst with molybdenum as a promoter to give ammonia.
N2 + 3H2⇋ 2NH3
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संबंधित प्रश्न
Write two physical properties of hydrogen.
Describe two chemical properties of hydrogen with equations.
Hydrogen is evolved when dilute HCl reacts with magnesium, but nothing happens in the case of mercury and silver. Explain.
Under what conditions can hydrogen be made to combine with oxygen?
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:
Reaction of hydrogen with nitrogen under specific conditions finds industrial utility.
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 → ________
Place the metals calcium, iron, magnesium and sodium in order of their activity with water, placing the most active first. Write the equation for each of the above metals which react with Water.
State the use of hydrogen –
In hydrogenation of oil and coal
