Some properties of sulphuric acid are listed below. Choose the role played by sulphuric acid which is responsible for the given reaction.

$N a N O_{3} + H_{2} S O_{4} (c o n c .) < 200^{\circ} C - --- \to N a H S O_{4} + H N O_{3}$

Dilute acid

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Dehydrating agent

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Non-volatile acid

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Oxidising agent

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Solution

The correct option is C Non-volatile acid
$Principle used$ : A more volatile acid can be displaced from its salt by a less volatile acid.
Concentrated sulphuric acid has a high boiling point hence it is non-volatile acid. Thus it is used for preparing volatile acids like HCl and $H N O_{3}$ .

$N a N O_{3} + H_{2} S O_{4} (c o n c .) < 200^{\circ} C - --- \to N a H S O_{4} + H N O_{3}$

Here in this reaction, it displaces more volatile acid $H N O_{3}$ on heating with the salt. Hence, it acts here as a non-volatile acid.
Option C is correct.

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Similar questions

Q. Some properties of sulphuric acid are listed below. Choose the role played by sulphuric acid as

A, B, C

D

which is responsible for the reaction (i) to (v). Some role/s may be repeated:

M g O + H_{2} S O_{4} \to M g S O_{4} + H_{2} O

Some properties of sulphuric acid are listed below. Choose the property A, B, C or D which is responsible for the reaction (a) to (e). Some properties may be repeated.
A. Acid
B. Dehydrating agent
C. Non-volatile acid
D. Oxidizing agent
(a) C₁₂H₂₂O₁₁ + nH₂SO₄ $\overset{}{\to}$ 12C + 11H₂O + nH₂SO₄
(b) S + 2H₂SO₄ $\overset{}{\to}$ 3SO₂ + 2H₂O
(c) NaCl + 2H₂SO₄ $\overset{}{\to}$ NaHSO₄ + HCl
(d) CuO + 2H₂SO₄ $\overset{}{\to}$ CuSO₄ + H₂O
(e) Na2CO₃ + H₂SO₄ $\overset{}{\to}$ Na₂SO₄ + H₂O + CO₂

Describe the reactions that show
(i) Concentrated sulphuric acid is a non-volatile acid.
(ii) Concentrated sulphuric acid acts as a dehydrating agent.
(iii) Concentrated sulphuric acid is an oxidising agent.
(iv) Dilute sulphuric acid behaves as dibasic acid.

(a) Which property of sulphuric acid accounts for its use as a dehydrating agent ?

(b) Concentrated sulphuric acid is both an oxidizing agent and a non-volatile acid. Write on equation each to illustrate the above mentioned properties of sulphuric acid.

(c) (i) Name the process used for the large scale manufacture of sulphuric acid.
(ii) Which property of sulphuric acid accounts for its use as a dehydrating agent?
(iii) Concentrated sulphuric acid is both an oxidizing agent and non-volatile acid. Write one equation each to illustrate the above mentioned properties of sulphuric acid.

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Some properties of sulphuric acid are listed below. Choose the role played by sulphuric acid which is responsible for the given reaction. NaNO3+H2SO4(conc.)<200∘C−−−−→NaHSO4+HNO3

Some properties of sulphuric acid are listed below. Choose the role played by sulphuric acid which is responsible for the given reaction.

$N a N O_{3} + H_{2} S O_{4} (c o n c .) < 200^{\circ} C - --- \to N a H S O_{4} + H N O_{3}$