JEE Advanced 2013 · Paper 2

The correct statement(s) about O₃ is (are)

1. AO-O bond lengths are equal.
2. BThermal decomposition of O₃ is endothermic.
3. CO₃ is diamagnetic in nature.
4. DO₃ has a bent structure.

In the nuclear transmutation ⁹₄Be + X → ⁸₄Be + Y, (X, Y) is (are)

1. A(γ, n)
2. B(p, D)
3. C(n, D)
4. D(γ, p)

The carbon-based reduction method is NOT used for the extraction of

1. Atin from SnO₂
2. Biron from Fe₂O₃
3. Caluminium from Al₂O₃
4. Dmagnesium from MgCO₃ · CaCO₃

The thermal dissociation equilibrium of CaCO₃(s) is studied under different conditions. CaCO₃(s) ⇌ CaO(s) + CO₂(g). For this equilibrium, the correct statement(s) is (are)

1. AΔH is dependent on T
2. BK is independent of the initial amount of CaCO₃
3. CK is dependent on the pressure of CO₂ at a given T
4. DΔH is independent of the catalyst, if any

The Ksp of Ag₂CrO₄ is 1.1 × 10⁻¹² at 298 K. The solubility (in mol/L) of Ag₂CrO₄ in a 0.1 M AgNO₃ solution is

1. A1.1 × 10⁻¹¹
2. B1.1 × 10⁻¹⁰
3. C1.1 × 10⁻¹²
4. D1.1 × 10⁻⁹

The reactions of Cl₂ gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two (different) oxoacids of chlorine, P and Q, respectively. The Cl₂ gas reacts with SO₂ gas, in presence of charcoal, to give a product R. R reacts with white phosphorus to give a compound S. On hydrolysis, S gives an oxoacid of phosphorus, T. P and Q, respectively, are the sodium salts of

1. Ahypochlorous and chloric acids
2. Bhypochlorous and chlorous acids
3. Cchloric and perchloric acids
4. Dchloric and hypochlorous acids

The reactions of Cl₂ gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two (different) oxoacids of chlorine, P and Q, respectively. The Cl₂ gas reacts with SO₂ gas, in presence of charcoal, to give a product R. R reacts with white phosphorus to give a compound S. On hydrolysis, S gives an oxoacid of phosphorus, T. R, S and T, respectively, are

1. ASO₂Cl₂, PCl₅ and H₃PO₄
2. BSO₂Cl₂, PCl₃ and H₃PO₃
3. CSOCl₂, PCl₃ and H₃PO₂
4. DSOCl₂, PCl₅ and H₃PO₄

An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q). The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H₂S in a dilute mineral acid medium. However, it gave a precipitate (R) with H₂S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H₂O₂ in an aqueous NaOH medium. The precipitate P contains

1. APb²⁺
2. BHg₂²⁺
3. CAg⁺
4. DHg²⁺

An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q). The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H₂S in a dilute mineral acid medium. However, it gave a precipitate (R) with H₂S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H₂O₂ in an aqueous NaOH medium. The coloured solution S contains

1. AFe₂(SO₄)₃
2. BCuSO₄
3. CZnSO₄
4. DNa₂CrO₄