In the given equation identify the role played by concentrated sulphuric acid : $S + 2 H_{2} S O_{4} \to 3 S O_{2} + 2 H_{2} O$

non-volatile acid

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oxidising agent

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dehydrating agent

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None of the above

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Solution

The correct option is B oxidising agent
It acts as an oxidizing agent. It oxidizes sulphur to sulpur dioxide. The oxidation state of sulphur changes from 0 to +4.
$0 S + 2 H_{2} S O_{4} \to 3 + 4 S O_{2} + 2 H_{2} O$

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Similar questions

Q. In the given equation

S + 2 H_{2} S O_{4} \to 3 S O_{2} + 2 H_{2} O

: What is the role played by conc.

H_{2} S O_{4}

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:

S + H_{2} S O_{4} (c o n c .) \to 3 S O_{2} + 2 H_{2} O

(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.

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

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

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In the given equation identify the role played by concentrated sulphuric acid :S+2H2SO4→3SO2+2H2O

The correct option is B oxidising agentIt acts as an oxidizing agent. It oxidizes sulphur to sulpur dioxide. The oxidation state of sulphur changes from 0 to +4.0S+2H2SO4→3+4SO2+2H2O

In the given equation identify the role played by concentrated sulphuric acid : $S + 2 H_{2} S O_{4} \to 3 S O_{2} + 2 H_{2} O$

The correct option is B oxidising agent
It acts as an oxidizing agent. It oxidizes sulphur to sulpur dioxide. The oxidation state of sulphur changes from 0 to +4.
$0 S + 2 H_{2} S O_{4} \to 3 + 4 S O_{2} + 2 H_{2} O$