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Preparation of Nitric Acid

Write the equ...

Question

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

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Solution

The required equation is:

${KNO}_{3} + H_{2} {SO}_{4} \overset{200 ° C}{\to} {KHSO}_{4} + {HNO}_{3}$

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

Q. (a) When nitric acid is prepared by the action of concentrated sulphuric acid on potassium nitrate, what is the special feature of the apparatus used?
(b) Write the equation for the laboratory preparation of nitric acid from potassium nitrate and concentrated sulphuric acid.
(c) Potassium nitrate is prepared from potassium hydroxide and nitric acid. Name the type of this reaction.
(d) Which gas is produced when potassium nitrate is heated? Write the equation for the reaction. [5 MARKS]

Q. Write the balanced equation for the laboratory preparation of nitric acid from potassium nitrate.

Q. Give reasons for the following:
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitrate should not be heated very strongly, above 200°C.

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.

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Preparation of Nitric Acid

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