Gypsum (CaSO4 .2H2O) is used for the reclamation of

Gypsum (CaSO4 .2H2O) is used for the reclamation of
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 Ans. Sodic/Alkaline soils
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Pick out the wrong statement. (A) Dehydration of ammonium carbamate to produce urea is endothermic (B) Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable (C) Gypsum (CaSO4 . 2H2O) is obtained as a by-product in the wet process for manufacture of ortho-phosphoric acid (D) Phosphate rock when reacted with dilute H2SO4 produces superphosphate

Description : Pick out the wrong statement. (A) Dehydration of ammonium carbamate to produce urea is endothermic (B) Direct use of liquid ammonia as a fertiliser for a tropical country like India ... manufacture of ortho-phosphoric acid (D) Phosphate rock when reacted with dilute H2SO4 produces superphosphate

Last Answer : (B) Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable

A sulphate salt of group 2 element of the periodic table is white ,soft substance which can be moulded into different shapes by making its dough.Identify the salt . (a) CaSO4.1/2 H2O (b) CaSO4.2H2O (c) 2CaSO4. 1⁄2 H2O (d)CaSO4

Description : A sulphate salt of group 2 element of the periodic table is white ,soft substance which can be moulded into different shapes by making its dough.Identify the salt . (a) CaSO4.1/2 H2O (b) CaSO4.2H2O (c) 2CaSO4. 1⁄2 H2O (d)CaSO4

Last Answer : (a) CaSO4.1/2 H2O

Plaster of Paris is (A) CaSO4 .½H2O (B) Used for setting of broken bones (C) Both (A) and (B) (D) Same as gypsum

Description : Plaster of Paris is (A) CaSO4 .½H2O (B) Used for setting of broken bones (C) Both (A) and (B) (D) Same as gypsum

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

CaSO4 .½H2O is known as (A) Blue vitriol (B) Plaster of Paris (C) Gypsum (D) Zeolite

Description : CaSO4 .½H2O is known as (A) Blue vitriol (B) Plaster of Paris (C) Gypsum (D) Zeolite

Last Answer : (B) Plaster of Paris

For reclamation of alkaline soil — is used. a. Lime b. Calcium carbonate c. Gypsum d. None of these

Description : For reclamation of alkaline soil — is used. a. Lime b. Calcium carbonate c. Gypsum d. None of these

Last Answer : c. Gypsum

Gypsum contains

Description : Gypsum contains

Last Answer : Ans. 29.2%Ca and 18.6%S

In the manufacture of ortho-phosphoric acid by strong H2SO4 leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesirable (A) CaSO4 .½ H2O and CaSO4 crystals (B) Pyrophosphoric acid (C) Meta-phosphoric acid (D) All (A), (B) and (C)

Description : In the manufacture of ortho-phosphoric acid by strong H2SO4 leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesirable (A) CaSO4 .½ H2O and CaSO4 crystals (B) Pyrophosphoric acid (C) Meta-phosphoric acid (D) All (A), (B) and (C)

Last Answer : (A) CaSO4 .½ H2O and CaSO4 crystals

Glauber's salt is chemically represented by (A) Na2SO4 .10H2O (B) CaCl(OCl) (C) CaSO4 .H2O (D) (NH4 )2SO4

Description : Glauber's salt is chemically represented by (A) Na2SO4 .10H2O (B) CaCl(OCl) (C) CaSO4 .H2O (D) (NH4 )2SO4

Last Answer : (A) Na2SO4 .10H2O

Salt cake is chemically represented by (A) Na2SO4(B) CaSO4. ½H2O(C) MgSO4(D) BaSO4

Description : Salt cake is chemically represented by (A) ) Na2SO4 (B) CaSO4 . ½H2O (C) MgSO4 (D) BaSO4

Last Answer : (A) Na2SO4

Main constituent of limestone is (A) CaCO3 (B) MgCO3 (C) Na2CO3 (D) CaSO4

Description : Main constituent of limestone is (A) CaCO3 (B) MgCO3 (C) Na2CO3 (D) CaSO4

Last Answer : (A) CaCO3

Chemical formula of 'salt cake' is (A) Na2SO4 (B) CaSO4 (C) MgSO4 (D) BaSO4

Description : Chemical formula of 'salt cake' is (A) Na2SO4 (B) CaSO4 (C) MgSO4 (D) BaSO4

Last Answer : (A) Na2SO4

The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All the above

Description : The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All the above

Last Answer : Answer: Option D

The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All these

Description : The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All these

Last Answer : Answer: Option D

What type of reaction is CH4 plus 2O2 - CO2 plus 2H2O?

Description : What type of reaction is CH4 plus 2O2 - CO2 plus 2H2O?

Last Answer : Hydrocarbons such as methane burning in oxygen is an example ofoxidation and also combustion.

What is a product in the following chemical reaction CH4 plus 2O2 CO2 plus 2H2O?

Description : What is a product in the following chemical reaction CH4 plus 2O2 CO2 plus 2H2O?

Last Answer : Products are carbon dioxide and water.

In the reaction 2Li(s)+2H2O(l) ➝ 2LiOH(aq)+H2(g), which compound is in the gaseous state?

Description : In the reaction 2Li(s)+2H2O(l) ➝ 2LiOH(aq)+H2(g), which compound is in the gaseous state?

Last Answer : H2

The following reaction is characteristic of what type of enzymes? 2H2O2 → 2H2O + O2 (A) Peroxides (B) Catalase (C) Dehydrogenase (D) Copper containing oxidases

Description : The following reaction is characteristic of what type of enzymes? 2H2O2 → 2H2O + O2 (A) Peroxides (B) Catalase (C) Dehydrogenase (D) Copper containing oxidases

Last Answer : Answer : B

Sodium reacts with water to form sodium hydroxide and hydrogen gas. The balanced equation which represents the above reaction is (a) Na(s) + 2H20(l) → 2NaOH(aq) + 2H2(g) (b) 2Na(s) + 2H2O(l) → 2NaOH(aq) +H2(g) (c) 2Na(s) + 2H20(l) → NaOH(aq) + 2H2(g) (d) 2Na(s) + H20(l) - 2NaOH(aq) + 2H2(g)

Description : Sodium reacts with water to form sodium hydroxide and hydrogen gas. The balanced equation which represents the above reaction is (a) Na(s) + 2H20(l) → 2NaOH(aq) + 2H2(g) (b) 2Na(s) + 2H2O(l) → 2NaOH(aq) +H2(g) (c) 2Na(s) + 2H20(l) → NaOH(aq) + 2H2(g) (d) 2Na(s) + H20(l) - 2NaOH(aq) + 2H2(g)

Last Answer : Answer: (b)

Select the wrong pair from the following given below: (a) Stregite: 2H2O (b) Variscite: 2H2O (c) Gibbsite: 3H2O (d) Hematite: FeOOH

Description : Select the wrong pair from the following given below: (a) Stregite: 2H2O (b) Variscite: 2H2O (c) Gibbsite: 3H2O (d) Hematite: FeOOH

Last Answer : (d) Hematite: FeOOH

Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction? (A) 2CO ↔ C + CO2 (B) CO + H2O ↔ CO2 + H2 (C) C + H2O ↔ CO + H2 (D) C + 2H2O ↔ CO2 + 2H2

Description : Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction? (A) 2CO ↔ C + CO2 (B) CO + H2O ↔ CO2 + H2 (C) C + H2O ↔ CO + H2 (D) C + 2H2O ↔ CO2 + 2H2

Last Answer : (A) 2CO ↔ C + CO2

The shift conversion reaction taking place during water gas manufacture is given by (A) C + H2O ↔ CO + H2 (B) C + 2H2O ↔ CO2 + 2H2 (C) CO + H2O ↔ CO2 + H2 (D) None of these

Description : The shift conversion reaction taking place during water gas manufacture is given by (A) C + H2O ↔ CO + H2 (B) C + 2H2O ↔ CO2 + 2H2 (C) CO + H2O ↔ CO2 + H2 (D) None of these

Last Answer : (C) CO + H2O ↔ CO2 + H2

Given, 3H2 + CO = CH4 + H2O, KP = 10 1.84 and, 4H2 + CO2 = CH4 + 2H2O, KP = 10 1.17 the KP for the reaction CO + H2O = CO2 + H2 is (A) 10 3.01 (B) 10 -0.67 (C) 10 -3.01 (D) 10 0.67

Description : Given, 3H2 + CO = CH4 + H2O, KP = 10 1.84 and, 4H2 + CO2 = CH4 + 2H2O, KP = 10 1.17 the KP for the reaction CO + H2O = CO2 + H2 is (A) 10 3.01 (B) 10 -0.67 (C) 10 -3.01 (D) 10 0.67

Last Answer : (D) 10 0.67

Prussian blue is chemically represented by (A) FeO.TiO2 (B) Ca SO4 . 2H2O (C) Fe4 [Fe (CN6 )3 ] (D) AlF3 . 3NaF

Description : Prussian blue is chemically represented by (A) FeO.TiO2 (B) Ca SO4 . 2H2O (C) Fe4 [Fe (CN6 )3 ] (D) AlF3 . 3NaF

Last Answer : (C) Fe4 [Fe (CN6 )3 ]

How is reclamation different from recycling?

Description : How is reclamation different from recycling?

Last Answer : Reclamation is a form of recyling. Reuse, reduce, recycle—the mantra of the green movement.

Explain the various land reclamation projects launched in Bombay (Mumbai) which helped in its expansion. -SST 10th

Description : Explain the various land reclamation projects launched in Bombay (Mumbai) which helped in its expansion. -SST 10th

Last Answer : (i) A project was launched in 1754 to join the seven islands of Bombay into one landmass. Then the Governor of Bombay. William Hornby approved the building of the great sea wall to prevent ... create the 22 acre Ballard Estate. Subsequently, the famous Marine Drive of Bombay (Mumbai) was developed.

Explain the various land reclamation projects launched in Bombay (Mumbai) which helped in its expansion. -SST 10th

Description : Explain the various land reclamation projects launched in Bombay (Mumbai) which helped in its expansion. -SST 10th

Last Answer : (i)A project was launched in 1754 to join the seven islands of Bombay into one landmass. Then the Governor of Bombay. William Hornby approved the building of the great sea wall to prevent ... create the 22 acre Ballard Estate. Subsequently, the famous Marine Drive of Bombay (Mumbai) was developed.

Give a brief description of land reclamation in Bombay? -SST 10th

Description : Give a brief description of land reclamation in Bombay? -SST 10th

Last Answer : . The earliest project began in 1784. The Bombay governor William Horn by approved the building of the great sea-wall which prevented the flooding of the low lying areas of Bombay. . Since then, ... 20th century, every bit of available area was built over and new areas were reclaimed from the sea.

Give a brief description of land reclamation in Bombay? -SST 10th

Description : Give a brief description of land reclamation in Bombay? -SST 10th

Last Answer : . The earliest project began in 1784. The Bombay governor William Horn by approved the building of the great sea-wall which prevented the flooding of the low lying areas of Bombay. . Since then, ... 20th century, every bit of available area was built over and new areas were reclaimed from the sea.

Explain in brief the history of land reclamation in Mumbai. -SST 10th

Description : Explain in brief the history of land reclamation in Mumbai. -SST 10th

Last Answer : Originally Bombay was a city of several islands which were joined into one land mass over a period of time. The first project began in 1784, when the Governor of Bombay, William Hornby, ... miles. As the population continued to increase rapidly, more and more area was reclaimed from the sea.

Throw light on some of the land reclamation projects of Bombay. -SST 10th

Description : Throw light on some of the land reclamation projects of Bombay. -SST 10th

Last Answer : The earliest project of land reclamation began in 1784. The Bombay Governor had great sea wall built to prevent flooding of low-lying areas. Government and private companies joined hands and formulated ... the 22 acre Ballard Estate. Much later, the famous Marine Drive of Bombay was developed.

Throw light on some of the land reclamation projects of Bombay. -SST 10th

Description : Throw light on some of the land reclamation projects of Bombay. -SST 10th

Last Answer : Land reclamation projects of Bombay are: (i) Building of great sea wall prevented flooding of low-lying areas of Bombay. (ii) Levelling of hills around Bombay. (iii) Dry dock was built between 1914 and 1918 and the excavated earth was used to create the Ballard Estate.

Describe any five features of land reclamation in Bombay. -SST 10th

Description : Describe any five features of land reclamation in Bombay. -SST 10th

Last Answer : (i) In 1784, William Hornby approved the building of the great sea wall which prevented the flooding of the low-lying areas of Bombay. (ii) In 1864, the Back Bay Reclamation company won ... Port Trust between 1914 and 1918. (vi) The famous Marine Drive of Bombay was developed subsequently.

Why were reclamation projects undertaken in Bombay? -SST 10th

Description : Why were reclamation projects undertaken in Bombay? -SST 10th

Last Answer : The Reclamation in Bombay was necessary. because: (i) When the islands of Bombay passed into British hands, the East India Company shifted its base from Surat to Bombay. Thus, Bombay ... earth to create the 22 acre Ballard Estate. Subsequently the famous Marine Drive of Bombay was developed.

What do you mean by “Land Reclamation”? -SST 10th

Description : What do you mean by “Land Reclamation”? -SST 10th

Last Answer : Reclamation means reclaiming of marshy or submerged areas for settlement or other use. History of Land Reclamation in Mumbai: (i) William Hornby approved the building of great sea wall. (ii) Several ... Malabar Hill to the end of Colaba. (iv) Bombay Port Trust created 22 acre Ballard Estate.

What is reclamation disease in plant? -Biology

Description : What is reclamation disease in plant? -Biology

Last Answer : answer:

What is Kenya Land reclamation plan?

Description : What is Kenya Land reclamation plan?

Last Answer : Feel Free to Answer

Deficiency of molybdenum causes: (a) Wilting (b) Mottling (c) Reclamation (d) Necrosis

Description : Deficiency of molybdenum causes: (a) Wilting (b) Mottling (c) Reclamation (d) Necrosis

Last Answer : Ans. ((b))

How many reclamation schemes has been completed by the Government? A. 60 B. 70 C. 80 D. 85

Description : How many reclamation schemes has been completed by the Government? A. 60 B. 70 C. 80 D. 85

Last Answer : ANSWER: C

Which of the following is least likely to be part of the calculation of the terminal- year incremental net cash flow for an energy-related expansion project? A. An initial working capital investment is now returned as an additional cash inflow B. Disposal/reclamation costs C. Capitalized expenditures D. Salvage value of any sold or disposed assets

Description : Which of the following is least likely to be part of the calculation of the terminal- year incremental net cash flow for an energy-related expansion project? A. An initial working capital ... Disposal/reclamation costs C. Capitalized expenditures D. Salvage value of any sold or disposed assets

Last Answer : D. Salvage value of any sold or disposed assets

Trichoderma harzianum has proved a useful microorganism for (a) gene transfer in higher plants (b) biological control of soil-borne plant pathogens (c) bioremediation of contaminated soils (d) reclamation of wastelands.

Description : Trichoderma harzianum has proved a useful microorganism for (a) gene transfer in higher plants (b) biological control of soil-borne plant pathogens (c) bioremediation of contaminated soils (d) reclamation of wastelands.

Last Answer : (b) biological control of soil-borne plant pathogens

Reclamation of saline soil which of the following practice is followed ? — a. Adequate drainage b. By good quality irrigation water c. Leaching of salts below root zone d. All of these

Description : Reclamation of saline soil which of the following practice is followed ? — a. Adequate drainage b. By good quality irrigation water c. Leaching of salts below root zone d. All of these

Last Answer : d. All of these

For reclamation of alkali soil — weed powder is used. a. Phalerious minor b. Lantena camera c. Argemona maxicana d. Parthenuym sp.

Description : For reclamation of alkali soil — weed powder is used. a. Phalerious minor b. Lantena camera c. Argemona maxicana d. Parthenuym sp.

Last Answer : c. Argemona maxicana

Mechanization in Indian agriculture started with…………. a) Land reclamation b) Development c) Central tractor organization d) none of the above

Description : Mechanization in Indian agriculture started with…………. a) Land reclamation b) Development c) Central tractor organization d) none of the above

Last Answer : Development 

In Reclamation Works What Are The Importance Of Geotextiles And Sand?

Description : In Reclamation Works What Are The Importance Of Geotextiles And Sand?

Last Answer : Answer : The primary purposes of geotextiles and sand in reclamation works are as follows:  Geotextiles: They are used to separate the marine mud from the reclamation fill. Also geotextiles are used ... . Sand also acts as a drainage for the excess pore water pressure of band drain installations.

During Reclamation How Can The Occurrence Of Mud Waves Can Be Rectified?

Description : During Reclamation How Can The Occurrence Of Mud Waves Can Be Rectified?

Last Answer : Answer : There are several solution to the rectification of the problem of mud waves:  Complete removal of all the disturbed mud: This method can be considered to be one of the fastest ... methods where the top layer is removed whereas the lower level is treated with the surcharging process.

Do California homes in fire zones use gypsum board / dry wall / sheet rock for their walls?

Description : Do California homes in fire zones use gypsum board / dry wall / sheet rock for their walls?

Last Answer : Fire-proof like cinder block walls and metal roofs. No wood or flammable material on the outside?

where can i buy agricultural gypsum

Description : where can i buy agricultural gypsum

Last Answer : Need Answer

Which state is the largest producer of Gypsum? -Do You Know?

Description : Which state is the largest producer of Gypsum? -Do You Know?

Last Answer : Rajasthan is by far the largest producer of gypsum in India [99 per cent of the total production of India]

What are the chemical signals of gypsum ?

Description : What are the chemical signals of gypsum ?

Last Answer : Chemical signal of gypsum CaSO4.2H2O.