Formation of $H N O_{3}$ when $N O_{2}$ is dissolved in $H_{2} O$ takes place through various reactions. Select the reaction not observed in this step.

N O_{2} + H_{2} O \to H N O_{3} + H N O_{2}

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H N O_{2} \to H_{2} O + N O + H N O_{3}

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Both

A

and

B

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None of the above

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Solution

The correct option is D None of the above

Step 1: Ammonia is heated with oxygen.Products formed are nitric oxide ( $N O$ ) and water as products.

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

Step 2: In second step the nitric oxide ( $N O$ ) is combined with oxygen again to create nitrogen dioxide ( $N O_{2}$ ).

$2 N O + O_{2} \to 2 N O_{2}$

Step 3: The nitrogen dioxide is reacted with water to form nitric acid ( $H N O_{3}$ )

$3 N O_{2} + H_{2} O \to 2 H N O_{3} + N O$

Step 4: The nitric oxide produced with the nitric acid is recycled and combined with oxygen and water to produce a higher concentration of nitric acid ( $H N O_{3}$ ).

$4 N O_{2} + O_{2} + 2 H_{2} O \to 4 H N O_{3}$
So all of the above reactions are involved in nitric acid preparation.
Hence option D is correct

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Similar questions

H_{2} O

H N O_{3}

N H_{3} + O_{2} \to N O + H_{2} O

N O + O_{2} \to N O_{2}

N O_{2} + H_{2} O \to H N O_{3} + H N O_{2}

N H O_{2} \to H N O_{3} + N O + H_{2} O

Balance this equation ( I )No2+H2O=HNo2+HNO3

(I) N H_{3} + O_{2} \to N O + H_{2} O

(I I) N O + O_{2} \to N O_{2}

(I I I) N O_{2} + H_{2} O \to H N O_{3} + H N O_{2}

(I V) H N O_{2} \to H N O_{3} + N O + H_{2} O

S + H N O_{3} \to H_{2} S O_{4} + N O_{2} + H_{2} O

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