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प्रश्न
Write an equation for the following:
Catalytic oxidation of ammonia
- Name the catalyst used in the above equation.
- In the reaction referred to in the above equation, the catalyst glows red hot. Why?
- What is the name of the industrial process which starts with the reaction referred to in the above equation?
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उत्तर
\[\ce{4NH3 + 5O2 ->[Platinum 800^\circ C] 6H2O + 4NO}\]
- The catalyst used is platinum or platinum-rhodium gauze.
- The catalyst glows red hot because ammonia oxidation is highly exothermic and releases a large amount of heat.
- The industrial process that begins with this reaction is the Ostwald process, used to manufacture nitric acid.
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संबंधित प्रश्न
Name the gas evolved in each of the following cases :
Alumina undergoes electrolytic reduction.
Name the following
Substance used to dry ammonia
Give a balanced chemical equation for the following:
Reaction of ammonia with sulphuric acid.
Name the substance used for drying ammonia gas? Why cannot substances such as conc.H2SO4, anhydrous calcium chloride and phosphorus pentoxide be used for drying ammonia gas?
Give balanced equation to prove that ammonia Has the element nitrogen in it.
Differentiate between:
Reaction of excess ammonia with chlorine and NH3 with excess chlorine
Choose the correct answer from the options given below :
Ammonia reacts with excess chlorine to form
Industrially, ammonia is obtained by direct combination of nitrogen and hydrogen.
(i) Write balanced equation for the direct combination of nitrogen and hydrogen.
(ii) Which of the metals - iron, platinum, copper - catalyse this direct combination?
(iii) Is the formation of ammonia promoted by high pressure or low pressure?
Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide.
Write a balanced chemical equation for the Black copper oxide changes to a reddish brown/pink copper reaction.
