Draw a labelled diagram of Ostwald method for preparation of Nitric Acid and explain its preparation only by equation?

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Solution

Preparation of $H N O_{3}$ by equations:
$4 N H_{3} + 5 O_{2} P t . g u a g e - ---- \to 750 - 900 4 N O + 6 H_{2} O$
$2 N O + O_{2} \to 2 N O_{2}$
$3 N O_{2} + H_{2} O \to 2 H N O_{3} + N O$

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Q. (i) Explain, why only all glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
(ii) Write a chemical equation to illustrate the acidic nature of nitric acid.

(a) (i) Explain, why only all glass apparatus should be used for the preparation of nitric acid by heating concentrated acid and potassium nitrate.
(ii) Write a chemical equation to illustrate the acidic nature of nitric acid.
(iii) Name the products formed when ammonium nitrate is heated.

Q. Describe the method for the preparation of acetone in laboratory and give the chemical equation with labelled diagram?

Explain why

(a) Only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.

(b) Nitric acid is kept in a reagent bottle for a long time.

Write the equation for the laboratory preparation of nitric acid from potassium nitrate and concentrated sulphuric acid.

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Draw a labelled diagram of Ostwald method for preparation of Nitric Acid and explain its preparation only by equation?

Preparation of HNO3 by equations:4NH3+5O2Pt.guage−−−−−→750−9004NO+6H2O2NO+O2→2NO23NO2+H2O→2HNO3+NO

Preparation of $H N O_{3}$ by equations:
$4 N H_{3} + 5 O_{2} P t . g u a g e - ---- \to 750 - 900 4 N O + 6 H_{2} O$
$2 N O + O_{2} \to 2 N O_{2}$
$3 N O_{2} + H_{2} O \to 2 H N O_{3} + N O$