During the extraction of Ag and using a KCN solution and Zn, cyanide ions and Zn react with metal ion as respectively

During the extraction of Ag and using a KCN solution and Zn, cyanide ions and Zn react with metal ion as respectively
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During the extraction of Ag and using a KCN solution and Zn, cyanide ions and Zn react with metal ... acid C. A reducing agent D. A complexing agent
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Statement-I : In the extraction of Ag, the complex `Na[Ag(CN)_(2)]` is reacted with `Zn` Statement-II : `Zn` is transition metal according to electron

Description : Statement-I : In the extraction of Ag, the complex `Na[Ag(CN)_(2)]` is reacted with `Zn` Statement-II : `Zn` is transition metal according to electron

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An organic base (X) reacts with nitrous acid at `0^(@)C` to give a clear solution. Heating the solution with KCN and cuprous cyanide followed by conti

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What concentration of `Ag^(+)` ions will be in equilibrium with a saturated solution containing a precipitate of `Ag_(2)CrO_(4) and CrO_(4)`-ion conce

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The metal that does not give H2 on treatment with dilute HCl is (a) Zn (b) Fe (c) Ag (d) Ca

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The volume (in `mL`) of `0.1M Ag NO_(3)` required for complete precipitation of chloride ions present in `30 mL` of `0.01M` solution of `[Cr(H_(2)O)_(

Description : The volume (in `mL`) of `0.1M Ag NO_(3)` required for complete precipitation of chloride ions present in `30 mL` of `0.01M` solution of `[Cr(H_(2)O)_(

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Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

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Statement-1: Zn displaces Ag from the complex `Na[Ag(CN)_(2)]` to give `Na_(2)[Zn(CN)_(4)]` Statement-2:Zn is more electro positive than silver

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Which of the following is an electrolytic cell A. lron * (ll) * (Fe) oxidized, aluminum (Al) reduced O B. Silver (Ag) oxidized, gold (Au) reduced C. Aluminum () oxidized (Zn) reduced LithiumD. (Li) oxidized, (Zn) reduced?

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Last Answer : The answer is not c.

Which of the following is not added during the extraction of silver by cyanide process?

Description : Which of the following is not added during the extraction of silver by cyanide process?

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The metal used to recover copper from a solution of copper sulfate is - (1) Na (2) Ag (3) Hg (4) Fe

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Extraction of gold and silver involves leaching the metal with `CN^(-)` ion. The metal is recovered by _______

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The ease of adsorption of the hydrated alkali metal ions on ion-exchange resins follows the order:

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Which of the following molecules or ions is NOT formed when K metal reacts with liquid CH3OH? Is it: w) potassium ion x) hydrogen ion y) methoxy ion z) hydrogen molecule

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In the cyanide extraction process of silver from argentite ore, the oxidising and reducing agents are

Description : In the cyanide extraction process of silver from argentite ore, the oxidising and reducing agents are

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Cyanide proces is used for the extraction of

Description : Cyanide proces is used for the extraction of

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Extraction of silver from `Ag_(2)S` by the use of sodium cyanide is example of

Description : Extraction of silver from `Ag_(2)S` by the use of sodium cyanide is example of

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In the cyanide extraction process of silver from argentite ore, the oxidising and reducing agents are

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`XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly disproportionate in alkaline solution as `

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Which of the following is true when HCL is passed through water. (i) It does not ionize in the solution as it is a covalent compound (ii) It ionizes in the solution (iii) It gives both hydrogen and hydroxyl ions in the solution (iv) It forms hydronium ion in the solution due to the combination of hydrogen ion with water molecule. (a) (i) only (b) (iii) only (c) (ii) and (iv) only (d) (iii) and (iv)

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pH is defined as the negative logarithm of the hydrogen ion concentration. Comparing a pH 5 and a pH 8 solution, which of the following is true? w) There are 1,000 times more hydrogen ions in the pH 8 solution. x) There are 1,000 times more hydrogen ions in the pH 5 solution. y) There are 3 times more hydrogen ions in the pH 8 solution. z) Cannot tell the difference between these two solutions by pH, since the numbers are so close.

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Extraction of `Ag` from sulphide ore and removal of unreacted silver bromide from phorographic plate involve complexes:

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Leaching can be used for the extraction of which metals (i) Pb (ii) Al (iii) Ag (iv) Au

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In the electrolysis of silver chloride, a charge of `4xx10^(5)` C is flowing through the electrolyte. Calculate the number of silver `(Ag^(+))` ions f

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Why cyanide ion act as ambident nucleophile ?

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(a) If the radius of the Br ion is 0.182 nm, how large a cation can fit in each of the tetrahedral hole. (b) AgI crystallizes in a cubic closed packed ZnS structure. What fraction of tetrahedral site is occupied by Ag ion ? (c) At what temp. range, most of the metals becomes super conductors ?

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Extraction of Zn is based on the following thermodynamic reaction. (A)` 2ZnS + 3O_(2) to 2ZnO+ 2SO_(2)` (B) `ZnO + C to Zn + CO" " DeltaG_(f)^(0)` are

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Which diagram is correctly related to the extraction of Zn from Calamine?

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As far as localised alveolar osteitis is concerned; which one of the following is true? A. The incidence in the mandible and maxilla is similar B. The prophylactic prescription of antibiotics prior to extraction reduces the incidence. C. Excessive fibrinolysis is the likely aetiology D. Purulent exudate must be seen for a diagnosis and irrigation is mandatory E. Zn oxide eugenol and alvogyl dressing promote a rapid bone growth

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Assertion :- In the reaction `Zn(s)+cu^(+2)(aq)rarrZn^(+2)(aq)+Cu(s)` `Cu^(+2)` ions act as oxidising agent and Zn atoms act as a reducing agent. Reas

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Oxidation number of central metal atom in the complex formed during the exraction of Ag in the Mac,Arthur forrest process.

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During the nerve impulse transmission, following ion or ions may play significant roles D A. Sodium B. Potassium C. Chloride D. All of these

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During the nerve impulse transmission, following ion or ions may play significant roles D A. Sodium B. Potassium C. Chloride D. All of these

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Statement-1: Extraction of gold from its native ore involves leaching the metal wih dilute solution of NaCN in presence of air. Statement-2:This is an

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The major product Y in the following sequence of reaction is: Aniline `overset((i) NaNO_(2)//HCl,273K)underset((ii)CuCN//KCN)to(X) overset((i)"DIBAL-H

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In the reaction, `C_(6)H_(5)NH_(2)underset(0-5^(@)C)overset(NaNO_(2)+HCl)rarr(A)underset(KCN)overset(CuCN)rarr(B)overset(H^(+)//H_(2)O)rarr(C)` the pr

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Consider the following sequence of reactions : `H_(2)C = CH-CH =CH_(2) overset(Br_(1)(1 "mole"))underset(C CI_(4))rarrA overset(1.KCN("excess"))unders

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`CH_(3)OH + PCl_(3) rarr A` `A overset(KCN)rarr B overset("hydrolysis")rarrC`. Then 'C' is

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Which of the following reagents can be used to distinguish between chlorobenzene and benzyl chloride? (a) alcoholic AgNO3 (b) Br2 in CCl4 (c) KCN (d) Br2 in H2O

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The metal extracted by leaching with cyanide is

Description : The metal extracted by leaching with cyanide is

Last Answer : The metal extracted by leaching with cyanide is A. Mg B. Ag C. Cu D. Na

Which of the following metal is leached by Cyanide process

Description : Which of the following metal is leached by Cyanide process

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The central heavy metal cobalt of vitamin B12 is coordinately bound to (A) Cyanide group (B) Amino group (C) Carboxyl group (D) Sulphide group

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Last Answer : Answer : A

Which one of the following complexes will consume more equivalent of aqueous solution of `Ag(NO_(3))` ?

Description : Which one of the following complexes will consume more equivalent of aqueous solution of `Ag(NO_(3))` ?

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Assertion: `Ag` and `Au` are extracted by leaching the ores with a dilute solution of `NaCN`. Reason: Impurities associated with these ores dissolve i

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The number of moles of oxalate ions oxidised by one mole of `MnO_(4)^(-)` ion in acidic medium is :

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