Phosphoric acid is prepared from

Question

Phosphoric acid is prepared from

A. Cryolite

B. Chalcopyrite

C. Rock phosphate

D. None of these

Share this question with your friends

Show all Chemical Process MCQ

Comment

In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

A. SO₃ gas is sparingly soluble in water

B. Water forms an acid mist, which is difficult to absorb

C. The purity of acid is affected

D. Scale formation in the absorber is to be avoided

Discuss this answer

Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the

A. Fertiliser manufacture

B. Car battery solution

C. Synthesis of oleum

D. Water treatment

Discuss this answer

Main use of hydrazine is

A. As a rocket fuel

B. In water treatment

C. As a disinfectant

D. As fire retardant

Discuss this answer

Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

A. Collagen

B. Tannin

C. Molasses

D. Carbohydrate

Discuss this answer

Boiling of water containing temporary hardness produces

A. CO₂

B. CaSO₄

C. CaHCO₃

D. None of these

Discuss this answer

Gun powder uses

A. Sulphur

B. Charcoal

C. Potassium nitrate

D. All (A), (B), & (C)

Discuss this answer

Fermentator temperature during production of alcohol from molasses is around __________ °C.

A. 5

B. 30

C. 130

D. 300

Discuss this answer

Pick out the wrong statement pertaining to nitric acid.

A. About 90% of nitric acid is manufactured by Ostwald's process

B. It is a strong mono basic acid which reacts with almost all the metals except noble metals

C. Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO2)

D. Arc process of nitric acid manufacture is economical as compared to Ostwald's process

Discuss this answer

Dacron is a

A. Condensation product of Hexamethylene diamine and adipic acid

B. Thermosetting material

C. Condensation product of dimethyl terephthalate and ethylene glycol

D. None of these

Discuss this answer

CaO is called

A. Quick lime

B. Slaked lime

C. Limestone

D. Calcite

Discuss this answer

Naphthalene is removed from coke oven gas by

A. Adsorbing on palladium

B. Absorbing in ethanolamine

C. Scrubbing with wash oil

D. Passing it through electrostatic precipitator

Discuss this answer

Finely ground calcium aluminate & silicate is a/an

A. Cermet

B. Cement

C. Abrasive

D. Explosive

Discuss this answer

Which of the following paper does not require a filler during manufacture?

A. Bond paper

B. Writing paper

C. Blotting paper

D. Coloured paper

Discuss this answer

Calcareous & argillaceous materials are used in the manufacture of

A. Lead

B. Cement

C. Carbon disulphide

D. None of these

Discuss this answer

Highly porous refractory bricks are

A. Less susceptible to chemical attack by molten fluxes and gases etc

B. Very strong

C. Having very high thermal conductivity

D. None of these

Discuss this answer

Potassium is kept & transported under

A. Water

B. Liquid ammonia

C. Kerosene oil

D. Alcohol

Discuss this answer

Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.

A. Mechanical

B. Sulphate/Kraft

C. Sulphite

D. Neutral sulphite semi-chemical

Discuss this answer

The most reactive allotropic form of phosphorus is __________ phosphorus.

A. Red

B. Yellow

C. Violet

D. Black

Discuss this answer

DDT stands for

A. Diethyl-diphenyl-trichloromethane

B. Dichloro-diphenyl-trichloromethane

C. diphenyl-dichloro-trichloromethane

D. Dichloro-diphenyl-trichloroethane

Discuss this answer

Widely used method for the conditioning of boiler feed water is the

A. Cold lime process

B. Coagulation

C. Hot-lime soda process

D. Sequestration

Discuss this answer

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

A. Xanthates

B. Stearic acid

C. Calcium & aluminium stearate

D. Formic acid

Discuss this answer

The type of high refractive index glass used in optical instruments is __________ glass.

A. Pyrex

B. Flint

C. Crookes

D. None of these

Discuss this answer

Hydrogenation of oil does not

A. Remove double bonds

B. Raise its melting point

C. Improve its resistance to oxidation

D. None of these

Discuss this answer

Grignard reagent is chemically known as

A. Ethyl magnesium chloride

B. Methyl magnesium chloride

C. Dichlorophenol

D. Monochloroacetic acid

Discuss this answer

Raw materials used for producing __________ cement does not contain iron oxide.

A. Waterproof

B. Slag

C. White

D. Pozzolan

Discuss this answer

Sea weeds are an important source of

A. Fluorine

B. Chlorine

C. Bromine

D. Iodine

Discuss this answer

The end bleaching agent used to move last traces of colour bodies from the pulp is

A. Chlorine dioxide (ClO₂)

B. MgO

C. SO₂ gas

D. Mercaptans

Discuss this answer

Percentage of glycerine present in the spent lye obtained during soap manufacture is about

A. 0.5

B. 5

C. 20

D. 35

Discuss this answer

Blue colour is imparted to glass by the addition of

A. FeSO₄

B. PbO

C. CaO

D. NaOH

Discuss this answer

Deacon's method is used for the manufacture of

A. Glauber's salt

B. Common salt

C. Chlorine

D. Graphite electrode

Discuss this answer

Accepted Answer

C. Rock phosphate

Phosphoric acid is prepared from

Correct Answer :

Show all Chemical Process MCQ

Related Questions

In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the

Main use of hydrazine is

Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

Boiling of water containing temporary hardness produces

Gun powder uses

Fermentator temperature during production of alcohol from molasses is around __________ °C.

Pick out the wrong statement pertaining to nitric acid.

Dacron is a

CaO is called

Naphthalene is removed from coke oven gas by

Finely ground calcium aluminate & silicate is a/an

Which of the following paper does not require a filler during manufacture?

Calcareous & argillaceous materials are used in the manufacture of

Highly porous refractory bricks are

Potassium is kept & transported under

Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.

The most reactive allotropic form of phosphorus is __________ phosphorus.

DDT stands for

Widely used method for the conditioning of boiler feed water is the

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

The type of high refractive index glass used in optical instruments is __________ glass.

Hydrogenation of oil does not

Grignard reagent is chemically known as

Raw materials used for producing __________ cement does not contain iron oxide.

Sea weeds are an important source of

The end bleaching agent used to move last traces of colour bodies from the pulp is

Percentage of glycerine present in the spent lye obtained during soap manufacture is about

Blue colour is imparted to glass by the addition of

Deacon's method is used for the manufacture of

Also checkout

Phosphoric acid is prepared from

Correct Answer :

Show all Chemical Process MCQ

Related Questions

In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because

Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the

Main use of hydrazine is

Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

Boiling of water containing temporary hardness produces

Gun powder uses

Fermentator temperature during production of alcohol from molasses is around __________ °C.

Pick out the wrong statement pertaining to nitric acid.

Dacron is a

CaO is called

Naphthalene is removed from coke oven gas by

Finely ground calcium aluminate & silicate is a/an

Which of the following paper does not require a filler during manufacture?

Calcareous & argillaceous materials are used in the manufacture of

Highly porous refractory bricks are

Potassium is kept & transported under

Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.

The most reactive allotropic form of phosphorus is __________ phosphorus.

DDT stands for

Widely used method for the conditioning of boiler feed water is the

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

The type of high refractive index glass used in optical instruments is __________ glass.

Hydrogenation of oil does not

Grignard reagent is chemically known as

Raw materials used for producing __________ cement does not contain iron oxide.

Sea weeds are an important source of

The end bleaching agent used to move last traces of colour bodies from the pulp is

Percentage of glycerine present in the spent lye obtained during soap manufacture is about

Blue colour is imparted to glass by the addition of

Deacon's method is used for the manufacture of

Also checkout

In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because