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Oxides of Nitrogen

The following...

Question

The following flow diagram represents the industrial preparation of nitric acid from ammonia $N H_{3} + O_{2}$ (from excess of air).
Which of the following options correctly describes the reagents, products and reaction conditions?

A-catalyst and high pressure; B-Cool; C-

N O_{2}

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A-Catalyst; B-Cool; C-

N O_{2}

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A-Catalyst and high pressure; B-High pressure; C-

N O_{2}

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A-High pressure; B-Catalyst; C-

N_{2} O_{3}

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Solution

The correct option is A A-catalyst and high pressure; B-Cool; C- $N O_{2}$
In the preparation of nitric acid, ammonia reacts with excess air under catalyst and high pressure to produce $N O$ . $N O$ further oxidizes to $N O_{2}$ in presence of air (cool air).
$A -$ Catalyst and high pressure.
$B -$ Cool air
$C - N O_{2}$

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