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Preparation of Nitric Acid

In laboratory...

Question

In laboratory Nitric acid is prepared by heating potassium Nitrate with :

A

H C l

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B

H_{2} S O_{4}

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C

C H_{3} C O O H

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D

Both (a) and (b)

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Solution

The correct option is A $H_{2} S O_{4}$
$H_{2} S O_{4}$
Nitric acid is prepared by heating potassium nitrate with conc. $H_{2} S O_{4}$
$K N O_{3} + H_{2} S O_{4} \to K H S O_{4} + H N O_{3}$

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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]

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

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In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitrate should not be heated very strongly above

200^{\circ} C

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Preparation of Nitric Acid

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