Sulphuric acid $(H_{2} S O_{4})$ has the following uses.
i. Concentrated $H_{2} S O_{4}$ is a drying agent.
ii. $H_{2} S O_{4}$ is used to prepare nitric acid in the laboratory.
Illustrate the uses with suitable examples.

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Solution

i. Concentrated $H_{2} S O_{4}$ is used for drying gases like sulphur dioxide $(S O_{2})$ and hydrogen chloride $(H C l)$ during their laboratory preparation. Thus, concentrated $H_{2} S O_{4}$ can also be used as a drying agent.
ii. Concentrated sulphuric acid reacts with salts like sodium nitrate to product nitric acid as follows
$N a N O_{3} + H_{2} S O_{4} \to N a H S O_{4} + H N O_{3}$
This reaction is used to prepare nitric acid in the laboratory.

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(a) concentrated sulphuric acid kept in air tight bottles ?

(b) $H_{2} S O_{4}$ is not used as a drying agent for $H_{2} S$ ?

What is the role of concentrated $H_{2} S O_{4}$ in the laboratory preparation of nitric acid?

Q. How many grams of concentrated sulphuric acid

(80 % w / w)

should be used to prepare

100 m L

of one molar

H_{2} S O_{4}

Suppose, in your lab, you have run out of dilute Sulphuric acid. You require dilute $H_{2} S O_{4}$ for an important synthesis but only have concentrated Sulphuric acid, water and a glass beaker. How will you synthesize dilute $H_{2} S O_{4}$ ?

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Sulphuric acid (H2SO4) has the following uses.i. Concentrated H2SO4 is a drying agent.ii. H2SO4 is used to prepare nitric acid in the laboratory.Illustrate the uses with suitable examples.

Sulphuric acid $(H_{2} S O_{4})$ has the following uses.
i. Concentrated $H_{2} S O_{4}$ is a drying agent.
ii. $H_{2} S O_{4}$ is used to prepare nitric acid in the laboratory.
Illustrate the uses with suitable examples.