The oxidation state of nickel in `K_(4)Ni(CN)_(4)` is:

The oxidation state of nickel in `K_(4)Ni(CN)_(4)` is:
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The oxidation state of nickel in `K_(4)Ni(CN)_(4)` is: A. `-1` B. `0` C. `+1` D. `+2`
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Among the following complexes : `K_(3)[Fe(CN)_(6)],[Co(NH_(3))_(6)]Cl_(3)` , `Na_(3)[Co ( o x )_(3)],[Ni(H_(2)O)_(6)]Cl_(2)`, `K_(2)[Pt(CN)_(4)]` and

Description : Among the following complexes : `K_(3)[Fe(CN)_(6)],[Co(NH_(3))_(6)]Cl_(3)` , `Na_(3)[Co ( o x )_(3)],[Ni(H_(2)O)_(6)]Cl_(2)`, `K_(2)[Pt(CN)_(4)]` and

Last Answer : Among the following complexes : `K_(3)[Fe(CN)_(6)],[Co(NH_(3))_(6)]Cl_(3)` , `Na_(3)[Co ( o x )_(3)],[Ni(H_( ... ,M,N B. K,N,O,P C. L,M,O,P D. L,M,N,O

The oxidation state of Cr in `[Cr(H_(2)O)_(6)]Cl_(3), [Cr(C_(6)H_(6))_(2)], and K_(2)[Cr(CN)_(2)(O)_(2)(O_(2))(NH_(3))]` respectively are :

Description : The oxidation state of Cr in `[Cr(H_(2)O)_(6)]Cl_(3), [Cr(C_(6)H_(6))_(2)], and K_(2)[Cr(CN)_(2)(O)_(2)(O_(2))(NH_(3))]` respectively are :

Last Answer : The oxidation state of Cr in `[Cr(H_(2)O)_(6)]Cl_(3), [Cr(C_(6)H_(6))_(2)], and K_(2)[Cr(CN)_(2)(O)_(2 ... and +4` C. `+3,+4 and +6` D. `+3,+2 and +4`

What will be the oxidation number of Fe in `K_(3)[Fe(CN)_(6)]` :-

Description : What will be the oxidation number of Fe in `K_(3)[Fe(CN)_(6)]` :-

Last Answer : What will be the oxidation number of Fe in `K_(3)[Fe(CN)_(6)]` :- A. `+4` B. `+3` C. `+2` D. Zero

The oxidation number of iron in potassium ferricyanide `[K_(3)Fe(CN)_(6)]` is :-

Description : The oxidation number of iron in potassium ferricyanide `[K_(3)Fe(CN)_(6)]` is :-

Last Answer : The oxidation number of iron in potassium ferricyanide `[K_(3)Fe(CN)_(6)]` is :- A. Two B. Six C. Three D. Four

Both `[Ni(CO)_(4)] and [Ni(CN)_(4)]^(2-)` are diamagnetic. The hybridisation of nickel in these complexes, respectively are :

Description : Both `[Ni(CO)_(4)] and [Ni(CN)_(4)]^(2-)` are diamagnetic. The hybridisation of nickel in these complexes, respectively are :

Last Answer : Both `[Ni(CO)_(4)] and [Ni(CN)_(4)]^(2-)` are diamagnetic. The hybridisation of nickel in these complexes, ... (2),sp^(3)` D. `dsp^(2),sp^(2)`

The oxidation number of nickel in K4[Ni(CN)4] is - (1) Zero (2) +4 (3) -4 (4) +8

Description : The oxidation number of nickel in K4[Ni(CN)4] is - (1) Zero (2) +4 (3) -4 (4) +8

Last Answer : (1) Zero Explanation: The oxidation number of nickel in K4[Ni(CN)4] is zero.

What is the oxidation number of Nickel in K4[Ni(CN)4]?

Description : What is the oxidation number of Nickel in K4[Ni(CN)4]?

Last Answer : Zero

The oxidation number of nickel in K4 [Ni(CN)4 ] is (1) Zero (2) +4 (3) –4 (4) +8

Description : The oxidation number of nickel in K4 [Ni(CN)4 ] is (1) Zero (2) +4 (3) –4 (4) +8

Last Answer : Zero

Assertion :- Oxidation number of `Ni` in `[Ni(CO)_(4)]` is zero. ltbr. Reason :- Nickel is bonded to neutral ligand, carbonyl.

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Last Answer : Assertion :- Oxidation number of `Ni` in `[Ni(CO)_(4)]` is zero. ltbr. Reason :- Nickel is ... is False. D. If both Assertion & Reason are False.

How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii),"conc." H_(2)SO_(4) + KCl rarr),((iii),"conc." H_

Description : How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii),"conc." H_(2)SO_(4) + KCl rarr),((iii),"conc." H_

Last Answer : How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii)," ... ,((ix),"conc." H_(2)SO_(4) + Cu rarr,,):}`

How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii),"conc." H_(2)SO_(4) + KCl rarr),((iii),"conc." H_

Description : How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii),"conc." H_(2)SO_(4) + KCl rarr),((iii),"conc." H_

Last Answer : How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii)," ... ,((ix),"conc." H_(2)SO_(4) + Cu rarr,,):}`

In `K_(4)[Fe(CN)_(6)],Fe` is in the form of

Description : In `K_(4)[Fe(CN)_(6)],Fe` is in the form of

Last Answer : In `K_(4)[Fe(CN)_(6)],Fe` is in the form of A. An atom B. Neutral complex C. Cationic complex D. Anionic complex

The IUPAC name of `K_(2)[Cr(CN)_(2)O_(2)(O)_(2)(NH_(3))]` is :

Description : The IUPAC name of `K_(2)[Cr(CN)_(2)O_(2)(O)_(2)(NH_(3))]` is :

Last Answer : The IUPAC name of `K_(2)[Cr(CN)_(2)O_(2)(O)_(2)( ... Potassium amminedicyanoperoxooxochromate(VI) D. Potassium amminecyanodiperoxodioxochromate(VI)

IUPAC name of `K_(3)[Fe(CN)_(6)]` is

Description : IUPAC name of `K_(3)[Fe(CN)_(6)]` is

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The complex `K_(4)[Zn(CN)_(4)(O_(2))_(2)]` is oxidised into `K_(2)[Zn(CN)_(4)(O_(2))_(2)]`, then which of the following is correct ?

Description : The complex `K_(4)[Zn(CN)_(4)(O_(2))_(2)]` is oxidised into `K_(2)[Zn(CN)_(4)(O_(2))_(2)]`, then which of the following is correct ?

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For the complex `K_(2)[Cr(NO)(NH_(3))(CN)_(4)],mu=1.73 BM`. (i) Write IUPAC name. (ii) What will be structure ? (iii) How many unpaired electrons are

Description : For the complex `K_(2)[Cr(NO)(NH_(3))(CN)_(4)],mu=1.73 BM`. (i) Write IUPAC name. (ii) What will be structure ? (iii) How many unpaired electrons are

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Amongst `Ni(CO)_(4),[Ni(CN)_(4)]^(2-) and NiCl_(4)^(2-)`:

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Last Answer : Amongst `Ni(CO)_(4),[Ni(CN)_(4)]^(2-) and NiCl_(4)^(2-)`: A. `Ni(CO)_(4) and NiCl_(4)^(2-)` ... NiCl_(4)^(2-) and [Ni(CN)_(4)]^(2-)` are paramagnetic.

A complex compound in which the oxidation number of a metal is zero is - (1) K4 [Fe (CN)6] (2) K3 [Fe (CN)6] (3) [Ni (CO)4] (4) [Pl (NH3)4]Cl2

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Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction oxidation state of iron .

Description : Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction oxidation state of iron .

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A blue colour complex is obtained in the analysis of `Fe^(+3)` having formula `Fe_(4)[Fe(CN)_(6)]_(3)` Let a= oxidation number of Iron in the corrdina

Description : A blue colour complex is obtained in the analysis of `Fe^(+3)` having formula `Fe_(4)[Fe(CN)_(6)]_(3)` Let a= oxidation number of Iron in the corrdina

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(xiv) Following equation represents a method of purification of nickel by `underset ("Impure")(Ni) + 4CO overset (320 K)rarr Ni(CO)_(4) overset(420 K)

Description : (xiv) Following equation represents a method of purification of nickel by `underset ("Impure")(Ni) + 4CO overset (320 K)rarr Ni(CO)_(4) overset(420 K)

Last Answer : (xiv) Following equation represents a method of purification of nickel by `underset ("Impure")(Ni) + ... Arkel B. Zone refining C. Mond D. Cupellation

Assertion : Nickel can be purified by Mond process. Reason : `Ni(CO)_(4)` is a volatile compound which deomposed at `460K` to give pure `Ni`.

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Compare the following complexes’ with respect to structural shapes of units, magnetic behaviour and hybrid orbitals involved in units : (i) [Ni(CN)4]2- (ii) [NiCl4]2- (iii) [CoF6]3- [At. Nos. : Ni = 28; Co = 27] -Chemistry

Description : Compare the following complexes’ with respect to structural shapes of units, magnetic behaviour and hybrid orbitals involved in units : (i) [Ni(CN)4]2- (ii) [NiCl4]2- (iii) [CoF6]3- [At. Nos. : Ni = 28; Co = 27] -Chemistry

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Describe the shape and magnetic behaviour of following complexes : (i) [CO(NH3)6]3+ (ii) [Ni(CN)4]2- (At. No. Co = 27, Ni = 28) -Chemistry

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Last Answer : (i) [CO(NH3)6]3+ : Orbitals of CO3+ ion : Hybridization : d2sp3 Shape : Octahedral Magnetic behaviour : Diamagnetic (absence of unpaired electrons) (ii) [Ni(CN)4]2-

Geometrical shapes of the complex formed by the reaction of `Ni^(2+)` with `Cl^(Θ),CN^(Θ)` and `H_(2)O` are :

Description : Geometrical shapes of the complex formed by the reaction of `Ni^(2+)` with `Cl^(Θ),CN^(Θ)` and `H_(2)O` are :

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The oxidation state of sulhur in `H_(2)SO_(5)` and chromium in `K_(2)Cr_(2)O_(7)` respectively is :-

Description : The oxidation state of sulhur in `H_(2)SO_(5)` and chromium in `K_(2)Cr_(2)O_(7)` respectively is :-

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`K_(2)Cr_(2)O_(7)` react with hydrazins to form product. The oxidation state of Cr in the product will be :-

Description : `K_(2)Cr_(2)O_(7)` react with hydrazins to form product. The oxidation state of Cr in the product will be :-

Last Answer : `K_(2)Cr_(2)O_(7)` react with hydrazins to form product. The oxidation state of Cr in the product will be :- A. `+4` B. `+3` C. `+5` D. `+2`

The solubility of `Ba_(3)(AsO_(4))_(2)`(formula mass=690) is `6.9xx10^(-2)` g//100 mL. What is the `K_(sp)`?

Description : The solubility of `Ba_(3)(AsO_(4))_(2)`(formula mass=690) is `6.9xx10^(-2)` g//100 mL. What is the `K_(sp)`?

Last Answer : The solubility of `Ba_(3)(AsO_(4))_(2)`(formula mass=690) is `6.9xx10^(-2)` g//100 mL. What is the `K_(sp ... )` C. `1.0xx10^(-15)` D. `6.0xx10^(-13)`

Determine the equivalent weights of the following salts: `(a) NaCl" " (b) K_(2)SO_(4) " " Ca_(3)(PO_(4))_(2)`

Description : Determine the equivalent weights of the following salts: `(a) NaCl" " (b) K_(2)SO_(4) " " Ca_(3)(PO_(4))_(2)`

Last Answer : Determine the equivalent weights of the following salts: `(a) NaCl" " (b) K_(2)SO_(4) " " Ca_(3)(PO_(4))_(2)`

Find the valence factor for following salts : (i) `K_(2)SO_(4).Al_(2)(SO_(4))_(3).24H_(2)O " " (ii) CaCO_(3)`

Description : Find the valence factor for following salts : (i) `K_(2)SO_(4).Al_(2)(SO_(4))_(3).24H_(2)O " " (ii) CaCO_(3)`

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IUPAC name of complex `K_(3)[Al(C_(2)O_(4))_(3)]` is

Description : IUPAC name of complex `K_(3)[Al(C_(2)O_(4))_(3)]` is

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I. `H_(2)S` reduces acidified `KMnO_(4)` to `MnSO_(4)` II. `H_(2)S` reduces acidified `K_(2)Cr_(2)O_(7)` to red colour `Cr_(2)(SO_(4))_(3)` III. `H_(2

Description : I. `H_(2)S` reduces acidified `KMnO_(4)` to `MnSO_(4)` II. `H_(2)S` reduces acidified `K_(2)Cr_(2)O_(7)` to red colour `Cr_(2)(SO_(4))_(3)` III. `H_(2

Last Answer : I. `H_(2)S` reduces acidified `KMnO_(4)` to `MnSO_(4)` II. `H_(2)S` reduces acidified `K_(2)Cr_(2) ... and III C. only II and III D. I,II,III and IV

How many mL of 0.3M `K_(2)Cr_(2)O_(7)` (acidic) is required for complete oxidation of 5 mL of 0.2 M `SnC_(2)O_(4)` solution.

Description : How many mL of 0.3M `K_(2)Cr_(2)O_(7)` (acidic) is required for complete oxidation of 5 mL of 0.2 M `SnC_(2)O_(4)` solution.

Last Answer : How many mL of 0.3M `K_(2)Cr_(2)O_(7)` (acidic) is required for complete oxidation of 5 mL of 0.2 M `SnC_(2)O_(4)` solution.

A compound 'X' of the formula `C_(3)H_(8)O` gives iodoform test. On oxidation with acidified `K_(2)Cr_(2)O_(7)X` gave Y. Y also gives iodogorm test. T

Description : A compound 'X' of the formula `C_(3)H_(8)O` gives iodoform test. On oxidation with acidified `K_(2)Cr_(2)O_(7)X` gave Y. Y also gives iodogorm test. T

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Ethyl alcohol on oxidation with acidified `K_(2)Ce_(2)O_(7)` gives

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The oxidation number of oxygen in `K_(2)O, K_(2)O_(2)` and `KO_(2)` are respecitvely

Description : The oxidation number of oxygen in `K_(2)O, K_(2)O_(2)` and `KO_(2)` are respecitvely

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What would be the equivalent weight of the reductant in the reaction : `[Fe(CN)_(6)]^(-3)+H_(2)O_(2)+2OH^(-)rarr2[Fe(CN)_(6)]^(4-)+2H_(2)O+O_(2)` [Giv

Description : What would be the equivalent weight of the reductant in the reaction : `[Fe(CN)_(6)]^(-3)+H_(2)O_(2)+2OH^(-)rarr2[Fe(CN)_(6)]^(4-)+2H_(2)O+O_(2)` [Giv

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The major product H in the given reaction sequence is `CH_(3)-CH_(2)-CO-CH_(3) overset(._(Theta)CN)toG overset(95% H_(2)SO_(4)) underset("Heat")toH`

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Last Answer : The major product H in the given reaction sequence is `CH_(3)-CH_(2)-CO-CH_(3) overset(._(Theta)CN) ... CH=underset(CH_(3))underset(|)(C)-CO-NH_(2)`

Hydrogen peroxide oxidises `[Fe(CN)_(6)]^(4-)` to `[Fe(CN)_(6)]^(3-)` in acidic medium but reduces `[Fe(CN)_(6)]^(3-)` to `[Fe(CN)_(6)]^(4-)` in alkal

Description : Hydrogen peroxide oxidises `[Fe(CN)_(6)]^(4-)` to `[Fe(CN)_(6)]^(3-)` in acidic medium but reduces `[Fe(CN)_(6)]^(3-)` to `[Fe(CN)_(6)]^(4-)` in alkal

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Hydrogen peroxide oxidises `[Fe(CN)_(6)]^(4-)` to `[Fe(CN)_(6)]^(3-)` in acidic medium but reduces `[Fe(CN)_(6)]^(3-)` to `[Fe(CN)_(6)]^(4-)` in alkal

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Last Answer : Hydrogen peroxide oxidises `[Fe(CN)_(6)]^(4-)` to `[Fe(CN)_(6)]^(3-)` in acidic medium but reduces `[Fe(CN)_( ... 2) O + O_(2)) and (H_(2)O + OH^(-))`

The IUPAC name of the complex `[PT(en)(NH_(3))(cl)_(2)(ONO)][Ag(CN)_(2)]` is :

Description : The IUPAC name of the complex `[PT(en)(NH_(3))(cl)_(2)(ONO)][Ag(CN)_(2)]` is :

Last Answer : The IUPAC name of the complex `[PT(en)(NH_(3))(cl)_(2)(ONO)][Ag(CN)_(2 ... (ethane-1,2-diammine) nitritioplatinum(IV) dicyanoargentate (I)

In the coordination compound ,`Na_(2)[Pt(CN)_(4)]` the Lewis acids is

Description : In the coordination compound ,`Na_(2)[Pt(CN)_(4)]` the Lewis acids is

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Which isomerism is exhibited by `[Co(NH_(3))_(6)][Cr(CN)_(6)] and [Cr(NH_(3))_(6)][Co(CN)_(6)]`?

Description : Which isomerism is exhibited by `[Co(NH_(3))_(6)][Cr(CN)_(6)] and [Cr(NH_(3))_(6)][Co(CN)_(6)]`?

Last Answer : Which isomerism is exhibited by `[Co(NH_(3))_(6)][Cr(CN)_(6)] and [Cr(NH_(3))_(6) ... )]`? A. Ionization B. Linkage C. Coordination D. Polymerization.

The correct statement about the magnetic properties of `[Fe(CN)_(6)]^(3-) and [FeF_(6)]^(3-) ` is : (Z=26)

Description : The correct statement about the magnetic properties of `[Fe(CN)_(6)]^(3-) and [FeF_(6)]^(3-) ` is : (Z=26)

Last Answer : The correct statement about the magnetic properties of `[Fe(CN)_(6)]^(3-) and [FeF_(6)]^(3-) ` ... ` is paramagnetic, `[FeF_(6)]^(3-)` is diamagnetic

Which complex of the following pairs has the larger value of `Delta_(0)` (i) `[Co(CN)_(6)]^(3-)` and `[Co(NH_(3))_(6)]^(3+)` (ii) `[Co(NH_(3))_(6)]^(3

Description : Which complex of the following pairs has the larger value of `Delta_(0)` (i) `[Co(CN)_(6)]^(3-)` and `[Co(NH_(3))_(6)]^(3+)` (ii) `[Co(NH_(3))_(6)]^(3

Last Answer : Which complex of the following pairs has the larger value of `Delta_(0)` (i) `[Co(CN)_(6)]^(3-)` and `[Co(NH_( ... (3))_(6)]^(3+) lt [CoF_(6)]^(3-)`

What type of isomers are the following : `(i) [Mn(CO)_(5)SCN] and [Mn(CO)_(5)NCS]` `(ii) [Co(en)_(3)[Cr(CN)_(6)] and [Cr(en)_(3)][Co(CN)_(6)]` `(iii)

Description : What type of isomers are the following : `(i) [Mn(CO)_(5)SCN] and [Mn(CO)_(5)NCS]` `(ii) [Co(en)_(3)[Cr(CN)_(6)] and [Cr(en)_(3)][Co(CN)_(6)]` `(iii)

Last Answer : What type of isomers are the following : `(i) [Mn(CO)_(5)SCN] and [Mn(CO)_(5)NCS]` `(ii) [Co(en)_(3)[Cr( ... ]Cl and [Co(H_(2)O)Cl_(3)(py)_(2)]H_(2)O`

Sodium nitroprusside `Na_(2)[Fe(CN)_(5)NO]` is used as a reagent for the detection of

Description : Sodium nitroprusside `Na_(2)[Fe(CN)_(5)NO]` is used as a reagent for the detection of

Last Answer : Sodium nitroprusside `Na_(2)[Fe(CN)_(5)NO]` is used as a reagent for the detection of A. sulphur B. nitrogen C. bromine D. iodine.

Calculate the EAN of central atom in the following complexes `(a) [Cr(CO)_(6)]" "(b) [Fe(CN)_(6)]^(4-)" " (c ) [Fe(CO)_(5)] " " (d) [Co(NH_(3))_(6)]^(

Description : Calculate the EAN of central atom in the following complexes `(a) [Cr(CO)_(6)]" "(b) [Fe(CN)_(6)]^(4-)" " (c ) [Fe(CO)_(5)] " " (d) [Co(NH_(3))_(6)]^(

Last Answer : Calculate the EAN of central atom in the following complexes `(a) [Cr(CO)_(6)]" "(b) [Fe(CN)_(6)]^(4-)" " (c ... ))_(6)]^(4+)" " (h) [PtCl_(6)]^(2-)`

`Na_(2)S + Na_(2)[Fe(CN)_(5)NO]to " X"` (Violet colour) The total number of possible isomers for complex " X" is , provided the ambident behaviour of

Description : `Na_(2)S + Na_(2)[Fe(CN)_(5)NO]to " X"` (Violet colour) The total number of possible isomers for complex " X" is , provided the ambident behaviour of

Last Answer : `Na_(2)S + Na_(2)[Fe(CN)_(5)NO]to " X"` (Violet colour) The total number of possible ... the ambident behaviour of `CN^(-)` is not considered.

`{:("Column" (I) , "Column"(II)), ((a) "Presence of halogen" , P. HNO_(3)//AgNO_(3)), ((b) "Presence of sulphur" , Q. Na_(2)[Fe(CN)_(5)NO]) , ((c) "Pr

Description : `{:("Column" (I) , "Column"(II)), ((a) "Presence of halogen" , P. HNO_(3)//AgNO_(3)), ((b) "Presence of sulphur" , Q. Na_(2)[Fe(CN)_(5)NO]) , ((c) "Pr

Last Answer : `{:("Column" (I) , "Column"(II)), ((a) "Presence of halogen" , P. HNO_(3)//AgNO_(3)), ((b) "Presence ... (d) "Presence of" P "and" S , S. FeCl_(3)):}`