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Which colour precipitate is fomed by Fe(...

Which colour precipitate is fomed by `Fe(II)` salt with potassium ferrocyanide, (i)in complete absence of air and (ii)under ordinary atmospheric condition ?

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To determine the color of the precipitate formed by Fe(II) salt with potassium ferrocyanide under different conditions, we can analyze the reactions that occur: ### Step-by-Step Solution: 1. **Identify the Reactants**: - We have Fe(II) salt (e.g., FeSO₄) and potassium ferrocyanide (K₄[Fe(CN)₆]). 2. **Reaction in Complete Absence of Air**: ...
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Which colour precipitate is obtained when a solution of Ca^(2+) ions reacts with potassium ferrocyanide.

Aqueous solution of a salt 'A', when mixed with NaoH solution and warmed, a black precipitate is formed. Black ppt. is filtered and dissolved in dil. H_(2)SO_(4) solution. The resulting solution gives a chocolate coloured precipitate with potassium ferrocyanide solution. the filtrate obtained after filtering off the black precipitate, upon warming with Zn and NaOH evolves a pungent smelling gas. the resulting solution also responds to the ring test. the filtrate does not evolve any gas when it is boiled with urea in the presence of H_(2)SO_(4) . Q. The chocolate coloured precipitate is:

Aqueous solution of a salt 'A', when mixed with NaoH solution and warmed, a black precipitate is formed. Black ppt. is filtered and dissolved in dil. H_(2)SO_(4) solution. The resulting solution gives a chocolate coloured precipitate with potassium ferrocyanide solution. the filtrate obtained after filtering off the black precipitate, upon warming with Zn and NaOH evolves a pungent smelling gas. the resulting solution also responds to the ring test. the filtrate does not evolve any gas when it is boiled with urea in the presence of H_(2)SO_(4) . Q. Salt 'A' consists of:

Aqueous solution of a salt 'A', when mixed with NaoH solution and warmed, a black precipitate is formed. Black ppt. is filtered and dissolved in dil. H_(2)SO_(4) solution. The resulting solution gives a chocolate coloured precipitate with potassium ferrocyanide solution. the filtrate obtained after filtering off the black precipitate, upon warming with Zn and NaOH evolves a pungent smelling gas. the resulting solution also responds to the ring test. the filtrate does not evolve any gas when it is boiled with urea in the presence of H_(2)SO_(4) . Q. The filtrate obtained after filtering off the black precipitate consists of:

Salts K, L, M, N and O undergo reaction (i) to (v) respectively with different reagents given below. Identify the cation present in these salts on the basis of these reaction. Tabulate your answer in the format given below: (i) Addition of potassium chromate solution to a solution of salt K gives a golden yellow precipitate. (ii) Addition of potassium ferrocyanide solution to a solution of slat L gives a chocolate brown precipitate. (iii) Addition of potassium ferricyanide solution to a solution of salt M gives an intese deep blue solution. (iv) Addition of potassium ferrocyanide solution to a solution of O gives a bluish white precipitate.

Copper (II) ions gives reddish brown precipitate with potassium ferrocyanide. The formula of the precipitate is:

When a solution of iron (II) salt is addedto potassium ferricyanide solution, a ______ coloured product known as ______ is formed.

Which of the following statements (s) is (are) correct with reference to the ferrous and ferric ions? (a). Fe^(2+) gives brown colour with potassium ferricyanide. (b). Fe^(2+) gives blue precipitate with potassium ferricyanide. (c). Fe^(3+) gives red colour with potassium thiocyanate. (d). Fe^(3+) gives brown colour with potassium thiocyanate.

Which colour of the white light is deviated by a glass prism (i) the most, and (ii) the least?

An aqueous solution of inorganic compounds (X) gives following reactions. (i) With an aqueous solution of barium chloride a precipitate insoluble in dilute HCl is obtained. (ii) Addition of excess of Kl gives a brown precipitate which turns white on additon of excess of hyposolution. (iii) With an aqueous solution of K_(4)[Fe(CN)_(6)] , a brown coloured precipitate is obtained. Identity (X) and gives equation for the reaction for (i),(ii) and (iii) observations.

RESONANCE ENGLISH-QUALITATIVE ANALYSIS PART 1-EXERCISE 1 PART 2 QUALITATIVE ANALYSIS
  1. When calomel reacts with ammonia solution, a black precipitate is fome...

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  2. What products are formed when precipitate formed by the reaction of Hg...

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  3. Why a salt containing lead turns black in colour, when placed for a lo...

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  4. Name one chloride which is soluble in hot water as well as in excess o...

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  5. Does mercuric sulphide dissolve in sodium sulphide solution (of 2M)?

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  6. What happens when white precipitate of Bi(OH)(3) is boiled ?

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  7. Why Na(2)S cannot be used in place of H(2)S (in presence of HCl) as a ...

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  8. Is their any reaction other then cyanide reaction which can be used fo...

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  9. Which basic radical is tested with the help of alkaline sodium stannit...

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  10. What happens when ammonium sulphide solution reacts with a solution co...

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  11. Can Cr(III) salt be oxidised to Cr(VI) salt by potassium (or ammonium)...

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  12. Do Fe(III) salts and Fe(II) salts both give red colouration with dimet...

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  13. Which colour precipitate is fomed by Fe(II) salt with potassium ferroc...

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  14. Which basic radical(s) decolourize acidic KMnO(4) ?

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  15. Partial precipitation of Mn^(2+) as Mn(OH)(2) occurs with ammonia solu...

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  16. What happens when Mn(II) ions free from chloride ions react with acidi...

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  17. Why Zn(II) salt is not precipitated as Zn(OH)(2) by ammonia solution i...

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  18. What will happen if the precipitation of V^(th) group cation by ammoni...

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  19. What happens when ammonium sulphate solution is added to a solution c...

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  20. Which colour precipitate is obtained when a solution of Ca^(2+) ions r...

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