Description : For the complex [Fe(en)2Cl2], Cl, (en = ethylene diamine), identify (i) the oxidation number of iron, (ii) the hybrid orbitals and the shape of the complex, (iii) the magnetic behaviour of the complex, (iv) ... an optical isomer also, and (vi) name of the complex. (At. no. of Fe = 26) \ -Chemistry
Last Answer : i) [Fe(en)2Cl2] Cl or x + 0 + 2 (-1) + (-1) = 0 x + (- 3) = 0 or x = + 3 ∴ Oxidation number of iron, x = + 3 (ii) The complex has two bidentate ligands and two ... )2Cl2] Cl, only cis-isomer shows optical isomerism. (vi) Name of complex: Dichloridobis (ethane-1, 2- diamine) Iron (III) chloride
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
Last Answer : A blue colour complex is obtained in the analysis of `Fe^(+3)` having formula `Fe_(4)[Fe(CN)_ ... coordination sphere. Then find the value of (c+a-2b)
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.
Description : 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
Last Answer : (3) [Ni (CO)4]
Description : In nitroprusside ion the iron and NO exist as Fe (II) and `NO^(+)` rather than the Fe(III) and NO. these forms can be differentiated by
Last Answer : In nitroprusside ion the iron and NO exist as Fe (II) and `NO^(+)` rather than the ... state magnetic moment. D. thermally decomposing the compound.
Description : Among the complex ions, `[Co(NH_(2) - CH_(2) - CH_(2) - NH_(2))_(2) Cl_(2)]^(+), [CrCl_(2) (C_(2)O_(4))_(2)]^(3-)` `[Fe(H_(2)O)_(4) (OH)_(2)]^(+), [Fe
Last Answer : Among the complex ions, `[Co(NH_(2) - CH_(2) - CH_(2) - NH_(2))_(2) Cl_(2)]^(+), [CrCl_(2) ... (3)) Cl]^(2+)` and that show(s) cis-trans isomerism is
Description : The acidic aqueous solution of ferrous ion forms a brown complex in the presence of `NO_(3)^(Θ)` by the follwing two steps: `[Fe(H_(2)O)_(6)]^(2+) +NO
Last Answer : The acidic aqueous solution of ferrous ion forms a brown complex in the presence of `NO_(3)^(Θ)` ... + H_(2)O` Complete and balance the equations .
Description : In `Fe(CO)_5`, the `Fe-C` bond possesses:
Last Answer : In `Fe(CO)_5`, the `Fe-C` bond possesses: A. `pi`-character only B. both `sigma` and ... characters C. ionic character only D. `sigma`- character only
Description : The bond length is CO is 1.128Å what will be the bond length of CO in `Fe(CO)_(5)`?
Last Answer : The bond length is CO is 1.128Å what will be the bond length of CO in `Fe(CO)_(5)`? A. 1.158Å B. 1.128Å C. 1.178Å D. 1.118Å
Description : What is the sum of bond order of Fe-C bond and C-O bond in `Fe(CO)_(5)` ?
Last Answer : What is the sum of bond order of Fe-C bond and C-O bond in `Fe(CO)_(5)` ?
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
Description : `EDTA^(4-)` i9s ethylenediamine tetraacetate ion The total number of `N-CO-O` bond angles in `[Co(EDTA)]^(-1)` complex ion is .
Last Answer : `EDTA^(4-)` i9s ethylenediamine tetraacetate ion The total number of `N-CO-O` bond angles in `[Co(EDTA)]^(-1)` complex ion is .
Description : A 100 mL sample of water was treated to convert any iron present to `Fe^(2+)`. Addition of 25 mL of 0.002 M `K_(2)Cr_(2)O_(7)` resulted in the reactio
Last Answer : A 100 mL sample of water was treated to convert any iron present to `Fe^(2+)`. Addition of 25 ... parts per million (ppm) of iron in the water sample.
Description : The orbitals of iron involved in the hybridization in `Fe(CO)_(5)` are
Last Answer : The orbitals of iron involved in the hybridization in `Fe(CO)_(5)` are A. `s,p_(x),p_(y),P_(z) and d_(x^(2)- ... (x),p_(z),P_(xy) and d_(x^(2)-y^(2))`
Description : Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction oxidation state of iron .
Last Answer : Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction ... . changes from +2 to +4 D. does not change.
Description : Assertion: Gastrectomy can lead to iron-deficiency or anaemia. Reason: HCl of gastric juice converts `Fe^(3+)` into `Fe^(2+)` which makes iron absorba
Last Answer : Assertion: Gastrectomy can lead to iron-deficiency or anaemia. Reason: HCl of gastric juice converts `Fe^ ... `Fe^(2+)` which makes iron absorbabale.
Description : (A): At 1200K iron can be reduce cuprous oxide (R )L: At 1200K, `Fe+Cu_(2)O to FeO+2Cu` `DeltaG=-300kj//"mole"`
Last Answer : (A): At 1200K iron can be reduce cuprous oxide (R )L: At 1200K, `Fe+Cu_(2)O to FeO+2Cu` ` ... incorrect D. If (A) is incorrect but (R ) is correct
Description : What is the percentage of Fe in iron ammonium sulfate hexahydrate?
Last Answer : 14% FeThe formula for iron ammonium sulfate hexahydrate is (NH4)2Fe(SO4)2·6H2O, which can also be written as FeH20N2O14S2.To determine the percentage of Fe in the compound, divide the mass of Fe by the mass of the compound and ... the mass of Fe is 56 g/mol.%Fe = (56 g/mol)/(392 g/mol) x 100 = 14%
Description : How many moles are in 223.2 iron (Fe)?
Last Answer : Approx 3.997 moles.
Description : Which of the following is true? Hypochromic anaemia is not due to iron deficiency except (A) Serum ‘Fe’ is high (B) Normal/low transferrin (C) Stainable iron in bone marrow (D) Iron therapy is affective
Last Answer : Answer : D
Description : Iron therapy is ineffective in which of the following conditions: (A) Chronic blood loss (B) Inadequate Fe intake (C) Hypochromic anaemia of pregnancy (D) Thalassaemia minor
Description : An increased serum ‘Iron’ and decreased ‘Fe’ binding capacity are found in (A) Fe-deficiency anaemia (B) Sideroblastic anaemia (C) Thalassaemia (D) Anaemia of chromic disorders
Last Answer : Answer : B
Description : Molecular iron (Fe) is (A) Stored primarily in spleen (B) Absorbed in the intestine (C) Absorbed in the ferric, Fe+++ form (D) Stored in the body in combination with ferritin
Description : An increased serum iron and decreased iron binding capacity is found in (A) Fe deficiency anemia (B) Sideroblastic anemia (C) Folate deficiency anemia (D) Sickle cell anemia
Description : Molecular Iron, Fe, is (A) Stored in the body in combination with Ferritin (B) Stored primarily in the spleen (C) Excreted in the urine as Fe2+ (D) absorbed in the intestine by albumin VITAMINS 129
Last Answer : Answer : A
Description : The chemical formula of iron pyrites is— (A) FeSO 4 (B) FeS (C) FeS 2 (D) Fe 2 (SO 4 ) 3
Last Answer : (C) FeS 2
Description : Transformer cores are normally made from (A) Soft ferrites (B) High purity iron (C) Grain oriented Fe-Si alloy (D) Al-Ni-Co alloy
Last Answer : (C) Grain oriented Fe-Si alloy
Description : For the correct assignment of electronic configuration of a complex, the valence bond theory often requires the measurement of
Last Answer : For the correct assignment of electronic configuration of a complex, the valence bond theory often ... activity C. magnetic moment D. dipole moment
Description : Ninhydrin with evolution of CO2 forms a blue complex with (A) Peptide bond (B) α-Amino acids (C) Serotonin (D) Histamine
Description : What is bond enthalpy ? What is its unit ? How we calculate enthalpy in case of complex compound ?
Last Answer : Ans. Amount of energy Required ot break one mole of bonds of particular type b/w two atoms in gaseous state. Its unit is KJ/mole It is obtained by dividing total bond dissociation enthalpy by no. of bonds broken
Description : Humectants added in cosmetic preparations generally act by (A) hydrogen bond formation (B) covalent bond formation (C) complex formation (D) the action of London forces
Last Answer : (A) hydrogen bond formation
Description : To be effective in ulcerative colitis, 5-aminosalicylic acid has to be given as: A. Acrylic polymer coated tablet which releases the drug only in the lower bowel B. A complex of two molecules joined together by azo bond C. A retention enema D. Any of the above ways
Last Answer : D. Any of the above ways
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,,):}`
Description : Cold dil. `H_(2)SO_(4)` will completely dissolve : (i) Pb (ii) `Fe_(3)O_(4)` (iii) Fe (iv) Cu (v) Mg (vi) MgO (vii) `CoCO_(3)` (viii) `CuCO_(2)` (ix)
Last Answer : Cold dil. `H_(2)SO_(4)` will completely dissolve : (i) Pb (ii) `Fe_(3)O_(4)` (iii) Fe (iv) Cu (v) ... ) `CoCO_(3)` (viii) `CuCO_(2)` (ix) `SrCO_(3)`
Description : Cold conc. `HNO_(3)` will completely dissolve: (i) Pb (ii) `Pb_(3)O_(4)` (iii) Fe (iv) Sn (v) Mg (vi) MgO (vii) Hg (viii) Au (ix) Ag (x) Pt
Last Answer : Cold conc. `HNO_(3)` will completely dissolve: (i) Pb (ii) `Pb_(3)O_(4)` (iii) Fe (iv) Sn (v) Mg (vi) MgO (vii) Hg (viii) Au (ix) Ag (x) Pt
Description : Which of the following solutions will exactly oxidize `25mL` of an acid solution of `0.1 M Fe` (`II`) oxalate?
Last Answer : Which of the following solutions will exactly oxidize `25mL` of an acid solution of `0.1 M Fe` (`II`) oxalate? A. ... 4)` D. 15 mL of 0.1 M `KMnO_(4)`
Description : Statement I `[Fe(H_(2)O)_(5)NO]SO_(4)` is paramagnetic Statement II The Fe in `[Fe(H_(2)O)_(5)NO]SO_(4)` has three unpaired electrons .
Last Answer : Statement I `[Fe(H_(2)O)_(5)NO]SO_(4)` is paramagnetic Statement II The Fe in `[Fe(H_(2)O) ... is false D. Statement-1 is false, statement-2 is true.
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)):}`
Description : Bessemerization is carried out for (I) Fe (II) Cu (III) Al (IV) silver
Last Answer : Bessemerization is carried out for (I) Fe (II) Cu (III) Al (IV) silver A. I,II B. II,III C. I,III D. All
Description : Consider the production of ammonia from methene and air as raw materials. The catalysts used are: (i) __________ for steam reforming of methane and (ii) __________ for ammonia synthesis. (A) (i) - Ni/Al2O3 ; (ii) - Cu - ZnO/ ... (i) - Ni/Al2O3 ; (ii) - Fe/Al2O3 (D) (i) - Fe/Al2O3 ; (ii) - Ni/Al2O3
Last Answer : (C) (i) - Ni/Al2O3 ; (ii) - Fe/Al2O3
Description : Complete the series BB, FE, II, ML, PP,.......... (A) TS (B) ST (C) RS (D) SR
Last Answer : Answer: A
Description : FeO (s) + CO (g) = Fe (s) + CO2 (g), k = 0. 435 at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K? (A) 1.0 (B) 1.3 (C) 2.3 (D) 3.3
Last Answer : Option D
Description : The correct statement (s) regarding the binary transition metal carbonyl compounds is (are) (Atomic numbers: Fe = 26, Ni = 28)
Last Answer : The correct statement (s) regarding the binary transition metal carbonyl compounds is (are) (Atomic ... the oxidation state of the metal is increased
Description : For the octahedral complexes of `Fe^(3+)` in `SCN^(-)`(thiocyanato-S) and in `CN^(-)` ligands environment, the difference between the spin-only magnet
Last Answer : For the octahedral complexes of `Fe^(3+)` in `SCN^(-)`(thiocyanato-S) and in `CN^(-)` ligands ... the nearest integer) is : [Atomic number of Fe=26]
Description : Bessemerisation is carried out for: (P) Fe, (Q) Cu, (R )Al, (S) Ag
Last Answer : Bessemerisation is carried out for: (P) Fe, (Q) Cu, (R )Al, (S) Ag A. I,II B. II,III C. III,IV D. I,III
Description : Is a Cu(s) plus Fe(s) is a element or a compound?
Last Answer : Feel Free to Answer