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9.2 Nitric Acid — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10Chemistry9.2 Nitric Acid3 Marks
Question
Write the equations involved in Ostwald process.
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Answer

$\begin{aligned} & 4 NH _3+5 O _2 \xrightarrow[800^{\circ} C ]{\text { Platinum gangue }} 4 NO +6 H _2 O +\text { Heat } \\ & 2 NO + O _2 \xrightarrow{50^{\circ} C } 2 NO _2 \\ & 4 NO _2+ O _2+2 H _2 O \longrightarrow 4 HNO _3 \\ & \end{aligned}$

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