The chemical formula of iron pyrites is— (A) FeSO 4 (B) FeS (C) FeS 2 (D) Fe 2 (SO 4 ) 3

The chemical formula of iron pyrites is—
(A) FeSO 4
(B) FeS
(C) FeS 2
(D) Fe 2 (SO 4 ) 3
by

1 Answer

Answer :

(C) FeS 2
by

Related questions

A green coloured solid compound ̳X‘, gets oxidized to reddish brown solid in presence of air. ̳X‘ on heating gives brown coloured solid ̳Y‘ and two pungent smelling gases ̳A‘ and ̳B‘. ̳A‘ turns acidified potassium dichromate solution green. Name ̳X‘, ̳Y‘, ̳A‘ , ̳B‘ and type of Reaction. (a) CuSO 4 , CuO, SO 2 , SO 3 , decomposition (b) FeSO 4 , Fe, SO 2 , SO 3 , decomposition (c) FeSO 4 , Fe 2 O 3, SO 2 , SO 3 , decomposition (d) FeSO 4 , Fe 2 O 3 , SO 3 , SO 2 , decomposition

Description : A green coloured solid compound ̳X , gets oxidized to reddish brown solid in presence of air. ̳X on heating gives brown coloured solid ̳Y and two pungent smelling gases ̳A and ̳B . ̳A turns acidified potassium ... , SO 3 , decomposition (d) FeSO 4 , Fe 2 O 3 , SO 3 , SO 2 , decomposition

Last Answer : (c) FeSO 4 , Fe 2 O 3, SO 2 , SO 3 , decomposition

Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture. (A) CaO (B) MnO2 (C) ZnO (D) FeS

Description : Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture. (A) CaO (B) MnO2 (C) ZnO (D) FeS

Last Answer : (C) ZnO

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

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)

What is the chemical formula for quartz? w) CaCO-3 x) SiO-2 y) Fe-2O-3 z) none of these

Description : What is the chemical formula for quartz? w) CaCO-3 x) SiO-2 y) Fe-2O-3 z) none of these

Last Answer : ANSWER: X -- SiO-2

Milk fever in cattle is caused due to the deficiency of : (A) Ca (B) Fe (C) Vit. ‘D’ (D) N (E) None of these

Description : Milk fever in cattle is caused due to the deficiency of : (A) Ca (B) Fe (C) Vit. ‘D’ (D) N (E) None of these

Last Answer : (B) Fe

Intervenous chlorosis is caused due to the deficiency of— (A) N (B) Mg(C) S (D) Fe

Description : Intervenous chlorosis is caused due to the deficiency of— (A) N (B) Mg(C) S (D) Fe

Last Answer : (D) Fe

Why gypsum is used in crop of mustard ? (A) For supplying sulphur (s) (B) For supplying N (C) For supplying Fe (D) For supplying P

Description : Why gypsum is used in crop of mustard ? (A) For supplying sulphur (s) (B) For supplying N (C) For supplying Fe (D) For supplying P

Last Answer : (A) For supplying sulphur (s)

‘Little leaf’ and ‘rosette’ of apple, ‘white bud’ of maize are the deficiency symptoms of (a) Fe (b) Zn (c) Cl (d) Mo

Description : ‘Little leaf’ and ‘rosette’ of apple, ‘white bud’ of maize are the deficiency symptoms of (a) Fe (b) Zn (c) Cl (d) Mo

Last Answer : (b) Zn

Soils with high pH are generally deficient in:? a Zn and Mn b B and Fe c Cu and Mo d Ca and Mg

Description : Soils with high pH are generally deficient in:? a Zn and Mn b B and Fe c Cu and Mo d Ca and Mg

Last Answer : a Zn and Mn

Chance process is used for the (A) Cleaning of coal (B) Concentration of iron ore (C) Concentration of pyrites (D) Water treatment

Description : Chance process is used for the (A) Cleaning of coal (B) Concentration of iron ore (C) Concentration of pyrites (D) Water treatment

Last Answer : (A) Cleaning of coal

Which of the following is an endothermic reaction? (A) Absorption of SO3 in 98% H2SO4 (B) C + H2O = CO + H2 (C) Thermal dissociation of iron pyrites (D) Both (B) and (C)

Description : Which of the following is an endothermic reaction? (A) Absorption of SO3 in 98% H2SO4 (B) C + H2O = CO + H2 (C) Thermal dissociation of iron pyrites (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

Upto a maximum of 72% of iron, is available in (A) Magnetite (B) Limonite (C) Siderite (D) Iron pyrites

Description : Upto a maximum of 72% of iron, is available in (A) Magnetite (B) Limonite (C) Siderite (D) Iron pyrites

Last Answer : Answer: Option A

Chemical formula of single superphosphate fertilizer is (a) Ca(H2PO4) (b) CaHPO4 (c) Ca3(PO4) (d) Ca(H2PO4) CaSO42H2O

Description : Chemical formula of single superphosphate fertilizer is (a) Ca(H2PO4) (b) CaHPO4 (c) Ca3(PO4) (d) Ca(H2PO4) CaSO42H2O

Last Answer : (a) Ca(H2PO4)

Heating pyrites in air to remove sulphur is known as which name? -General Knowledge

Description : Heating pyrites in air to remove sulphur is known as which name? -General Knowledge

Last Answer : The answer is 'Roasting'

Heating pyrites in air to remove sulphur is known as which name? -General Knowledge

Description : Heating pyrites in air to remove sulphur is known as which name? -General Knowledge

Last Answer : answer:

Heating pyrites in air to remove sulphur is known as which name? -General Knowledge

Description : Heating pyrites in air to remove sulphur is known as which name? -General Knowledge

Last Answer : answer:

Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted in a blast furnace. The matt

Description : Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted in a blast furnace. The matt

Last Answer : Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and ... D. `Cu_(2)O +FeO`(large amount).

Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted in a blast furnace. The matt

Description : Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted in a blast furnace. The matt

Last Answer : Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and then ... CaSiO_(3)` D. `Cu_(2)O.SiO_(2)`

Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted in a blast furnace. The matt

Description : Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted in a blast furnace. The matt

Last Answer : Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and ... (3)` D. To check the reduction of FeO

Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted in a blast furnace. The matt

Description : Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted in a blast furnace. The matt

Last Answer : Extraction of copper is done using copper pyrites. After roasting, the ore is mixed with silica and coke and then ... O` D. `CuCO_(3).Cu(OH)_(2)`

Statement-1: Silica is added as a flux in reverberatory furnance, in the extraction of copper from copper pyrites. Statement-2: Silica decreases the m

Description : Statement-1: Silica is added as a flux in reverberatory furnance, in the extraction of copper from copper pyrites. Statement-2: Silica decreases the m

Last Answer : Statement-1: Silica is added as a flux in reverberatory furnance, in the extraction of copper from ... Statement-1 is false but Statement -2 is true

Roasting of copper pyrites is done:

Description : Roasting of copper pyrites is done:

Last Answer : Roasting of copper pyrites is done: A. to remove moisture and volatiaile impurities B. C. D.

When copper pyrites is roasted in excess of air, a mixture of `CuO + FeO` is formed. `FeO` is present as impurity. This can be removed as slag during

Description : When copper pyrites is roasted in excess of air, a mixture of `CuO + FeO` is formed. `FeO` is present as impurity. This can be removed as slag during

Last Answer : When copper pyrites is roasted in excess of air, a mixture of `CuO + FeO` is formed. `FeO` is present ... a basic flux D. CaO, which is a basic flux

Can pyrites be silver in color?

Description : Can pyrites be silver in color?

Last Answer : Need answer

The ore of Aluminium is - (1) Fluorspar (2) Bauxite (3) Chalco pyrites (4) Hematite

Description : The ore of Aluminium is - (1) Fluorspar (2) Bauxite (3) Chalco pyrites (4) Hematite

Last Answer : (2) Bauxite Explanation: Bauxite, an aluminium ore, is the world's main source of aluminium. Bauxite is priinarily comprised of aluminum oxide compounds (alumina), silica, iron oxides and titanium dioxide. It is refined through the Bayer chemical process into alumina.

Burning pyrites ore gives out – (1) Carbon dioxide gas (2) Sulphur dioxide gas (3) Nitrogen dioxide gas (4) Nitric oxide gas

Description : Burning pyrites ore gives out – (1) Carbon dioxide gas (2) Sulphur dioxide gas (3) Nitrogen dioxide gas (4) Nitric oxide gas

Last Answer : (2) Sulphur dioxide gas Explanation: The mineral pyrite, or iron pyrite, is an iron sulfide with the formula FeS9. Pyrite remains in commercial use for the production of sulfur dioxide, for use in such applications as the paper industry, and in the manufacture of sulfuric acid.

Heating pyrites in air to remove sulphur is known as which name?

Description : Heating pyrites in air to remove sulphur is known as which name?

Last Answer : Roasting

Average sulphur content in Indian pyrites is about __________ percent. (A) 15 (B) 35 (C) 55 (D) 70

Description : Average sulphur content in Indian pyrites is about __________ percent. (A) 15 (B) 35 (C) 55 (D) 70

Last Answer : (B) 35

The chamber process is (A) Preferred over contact process for producing 98 to 100% H2SO4 and various oleums (B) Non-catalytic and operates only on pyrites (C) A batch process for directly producing high strength (98 to 100%) H2SO4 (D) None of these

Description : The chamber process is (A) Preferred over contact process for producing 98 to 100% H2SO4 and various oleums (B) Non-catalytic and operates only on pyrites (C) A batch process for directly producing high strength (98 to 100%) H2SO4 (D) None of these

Last Answer : (D) None of these

The ore of Aluminium is (1) Fluorspar (2) Bauxite (3) Chalco pyrites (4) Hematite

Description : The ore of Aluminium is (1) Fluorspar (2) Bauxite (3) Chalco pyrites (4) Hematite

Last Answer : Bauxite

Burning pyrites ore gives out (1) Carbon dioxide gas (2) Sulphur dioxide gas (3) Nitrogen dioxide gas (4) Nitric oxide gas

Description : Burning pyrites ore gives out (1) Carbon dioxide gas (2) Sulphur dioxide gas (3) Nitrogen dioxide gas (4) Nitric oxide gas

Last Answer : Sulphur dioxide gas 

Sodium adsorption ratio (SAR) can be calculated by using of formula (a) SAR = Na+ / (b) SAR = Na+ / (c) SAR = Ca2+ + Mg2+ / (d) SAR = Na+ /

Description : Sodium adsorption ratio (SAR) can be calculated by using of formula (a) SAR = Na+ / (b) SAR = Na+ / (c) SAR = Ca2+ + Mg2+ / (d) SAR = Na+ /

Last Answer : (b) SAR = Na+ /

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) the number of geometrical isomers, (v) whether there is an optical isomer also, and (vi) name of the complex. (At. no. of Fe = 26) \ -Chemistry

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

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

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

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.

The orbitals of iron involved in the hybridization in `Fe(CO)_(5)` are

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))`

In the complex acetylbromidodicarbonylbis (triethylphosphine) iron (II), the number of `Fe-C` bond (s) is

Description : In the complex acetylbromidodicarbonylbis (triethylphosphine) iron (II), the number of `Fe-C` bond (s) is

Last Answer : In the complex acetylbromidodicarbonylbis (triethylphosphine) iron (II), the number of `Fe-C` bond (s) is

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

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.

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 .

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.

Assertion: Gastrectomy can lead to iron-deficiency or anaemia. Reason: HCl of gastric juice converts `Fe^(3+)` into `Fe^(2+)` which makes iron absorba

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.

(A): At 1200K iron can be reduce cuprous oxide (R )L: At 1200K, `Fe+Cu_(2)O to FeO+2Cu` `DeltaG=-300kj//"mole"`

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

What is the percentage of Fe in iron ammonium sulfate hexahydrate?

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%

How many moles are in 223.2 iron (Fe)?

Description : How many moles are in 223.2 iron (Fe)?

Last Answer : Approx 3.997 moles.

How many moles are in 223.2 iron (Fe)?

Description : How many moles are in 223.2 iron (Fe)?

Last Answer : Approx 3.997 moles.

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

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

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 : 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

Last Answer : Answer : D

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

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

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 : 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

Last Answer : Answer : D

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 : 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

Last Answer : Answer : B

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

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