Inorganic dbts

JEE Main 2015 Papers › Inorganic Chemistry questions › Inorganic dbts

Q1 what happens when stannous sulfide treated with yellow ammonium sulfide ??

Q2 How can Co and NI be separated

Q3 How can Cu²⁺ and Cd²⁺ be separated ??

#Chemistry #Inorganic Chemistry

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Shreyan ·2009-11-12 10:10:43

Q1 first stannous sulfide dissolves...then on addition of H⁺, it forms stannic sulfide.

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eureka123 ·2009-11-12 10:14:27

i dont have answer..can u support ur ans with reaction ??

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Shreyan ·2009-11-12 10:50:54

someone please confirm...

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govind ·2010-02-22 01:34:15

1. SnS is solube in (NH₄)₂S ..the reaction given by shreyan is right..
2. Ni and Co can be separated by DMG(dimethyl glyoxime) Ni forms red ppt with DMG..
3. Cu²⁺ and Cd²⁺ can be separated by K₄[Fe(CN)₆]...Copper forms a chocolate brown ppt..with K₄[Fe(CN)₆]

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Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω

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Inorganic dbts

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