Some properties of sulphuric acid are listed below. Choose the role played by sulphuric acid – A, B, C, or D which is responsible for the reactions (i) to (v). Some role/s may be repeated.
Column I
(A) Dilute acid
(B) Dehydrating agent
(C) Non-volatile acid
(D) Oxidising agent
Column II
(a) CuSO₄.5H₂O $\xrightarrow{\text{Conc. H}$ CuSO₄ + 5H₂O
(b) S + 2H₂SO₄ [conc.] ⟶ 3SO₂ + 2H₂O
(c) NaNO₃ + H₂SO₄ [conc.] $\xrightarrow{\lt 200 \degree\text{C}}$ NaHSO₄ + HNO₃
(d) MgO + H₂SO₄ ⟶ MgSO₄ + H₂O
(e) Zn + 2H₂SO₄ [conc.] ⟶ ZnSO₄ + SO₂ + 2H₂O

Question

Some properties of sulphuric acid are listed below. Choose the role played by sulphuric acid – A, B, C, or D which is responsible for the reactions (i) to (v). Some role/s may be repeated.

Column I
(A) Dilute acid

(B) Dehydrating agent

(C) Non-volatile acid

(D) Oxidising agent

Column II
(a) CuSO₄.5H₂O $\xrightarrow{\text{Conc. H}$ CuSO₄ + 5H₂O

(b) S + 2H₂SO₄ [conc.] ⟶ 3SO₂ + 2H₂O

(c) NaNO₃ + H₂SO₄ [conc.] $\xrightarrow{\lt 200 \degree\text{C}}$ NaHSO₄ + HNO₃

(d) MgO + H₂SO₄ ⟶ MgSO₄ + H₂O

(e) Zn + 2H₂SO₄ [conc.] ⟶ ZnSO₄ + SO₂ + 2H₂O

KnowledgeBoat · Accepted Answer

(i) B: Dehydrating agent (ii) D: Oxidizing agent (iii) C: Non-volatile acid (iv) A: Dilute acid (v) D: Oxidising agent

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Assertion (A): Sulphuric acid acts as an oxidising agent.Reason (R): Sulphuric acid produces hydrogen on reacting with zinc.Both A and R are true and R is the correct explanation of A.Both A and R are true but R is not the correct explanation of A.A is true but R is false.A is false but R is true.