Write a Balanced equation for the reaction of ammonia and oxygen in the presence of a catalyst:

{N H}_{3} + {5 O}_{2} 800 C - -- \to P t N O + H_{2} O + △

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{4 N H}_{3} + {5 O}_{2} 800 C - -- \to P t 4 N O + 6 H_{2} O + △

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{4 N H}_{3} + {3 O}_{2} 800 C - -- \to P t 4 N O + H_{2} O + △

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{N H}_{3} + {3 O}_{2} 800 C - -- \to P t N O + H_{2} O + △

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Solution

The correct option is B ${4 N H}_{3} + {5 O}_{2} 800 C - -- \to P t 4 N O + 6 H_{2} O + △$
Catalyst used is Platinum. The catalyst glows since the catalytic oxidation of ammonia is an exothermic reaction. The industrial process is known as Ostwald's process for the manufacture of nitric acid.
${4 N H}_{3} + {5 O}_{2} 800 C - -- \to P t N O + H_{2} O + △$

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4 N H_{3} + 5 O_{2} \to 4 N O + 6 H_{2} O

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