Which of the following is used as a coagulant in treating turbid water?

Question

Which of the following is used as a coagulant in treating turbid water?

A. Chlorine

B. Ferric sulphate

C. Calcium sulphate

D. Activated carbon

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Pick out the wrong statement.

A. High early strength cement are made from materials having high silica to lime ratio

B. The function of gypsum in cement is to enhance its initial setting rate

C. Acid resistant cements are known as silicate cement

D. Major component of greyish Portland cement is tricalcium silicate

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__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

A. Solvay

B. Ostwald's

C. Haber's

D. None of these

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Essential oils are usually obtained using

A. Steam distillation

B. Extractive distillation

C. Solvent extraction

D. Leaching

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Bromine content in sea water may be around __________ ppm.

A. 70

B. 640

C. 1875

D. 2500

Discuss this answer

Use of hydrated lime in water treatment

A. Before filtration, reduces the bacterial load on filters

B. After filtration, combats the corrosiveness of water due to the presence of O₂ & CO₂

C. Is to adjust the pH value

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

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Which of the following is the second major component of cement?

A. Al₂O₃

B. CaO

C. SiO₂

D. Fe₂O₃

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Metallic soap is __________ salt of fatty acids.

A. Sodium

B. Potassium

C. Both sodium & potassium

D. Aluminium or calcium

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Catalyst used in the hydrogenation of oil is

A. Nickel

B. Platinum

C. Iron

D. Alumina

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Hydrochloric acid is also known as

A. Oil of vitriol

B. Muriatic acid

C. Strong organic acid

D. Green acid

Discuss this answer

Hydrolysis of sugar is called

A. Hydration

B. Inversion

C. Esterification

D. None of these

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Cellulose percentage in bamboo fibre is about

A. 10

B. 20

C. 50

D. 85

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Absorption of SO3 in 97% H2SO4 is

A. Exothermic

B. Endothermic

C. Not possible

D. None of these

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__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.

A. Pyrex

B. Soda lime

C. Lead

D. High silica

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In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by

A. Increasing the oxygen concentration

B. Putting more quantity of V2O5 catalyst in the converter

C. Removing some quantity of SO3 during intermediate stage

D. Maintaining low temperature & pressure in the converter

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99.5% purity oxygen is used in

A. Cutting and welding by oxy-acetylene flame

B. Hospitals for medicinal purposes

C. Gas masks and artificial breathing apparatus

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

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Production of alcohol by fermentation of molasses is a/an __________ process.

A. Anaerobic

B. Aerobic

C. Endothermic

D. Both (B) and (C)

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Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

A. 1 - 2

B. 15 - 20

C. 50 - 60

D. 80 - 85

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In sulphate pulp manufacture, the pressure and temperature in the digestor is

A. 10 atm., 800 °C

B. 10 atm., 170-180°C

C. 1 atm., 170 - 180°C

D. 1 atm., 800°C

Discuss this answer

The purpose of tanning in leather industry is to

A. Stiffen the leather

B. Smoothen the leather

C. Make it flexible

D. Impart water resistance

Discuss this answer

Riboflavin is a/an

A. Vitamin

B. Analgesic drug

C. Anaesthetics

D. Anti-malarial drug

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The most stable allotropic form of phosphorous is the __________ phosphorous.

A. White

B. Black

C. Yellow

D. Red

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The process used for the manufacture of ethyl alcohol from molasses is

A. Distillation

B. Dehydration

C. Dehydrogenation

D. None of these

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Viscosity index improver (like polystyrene or polyisobutylene) is added to lubricant to

A. Reduce its viscosity

B. Increase its viscosity

C. Reduce the variation in its viscosity with temperature

D. Increase the variation in its viscosity with temperature

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Cement mainly contains

A. CaO, SiO₂, Al₂O₃

B. MgO, SiO₂, K₂O

C. Al₂O₃, MgO, Fe₂O₃

D. CaO, MgO, K₂O

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The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

A. 800

B. 1600

C. 4000

D. 8500

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Superior quality laboratory apparatus is made of the __________ glass having low thermal coefficient of expansion & high chemical resistance.

A. Flint

B. Soda

C. Pyrex

D. Potash

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Starting raw material for the manufacture of alum is

A. Alumina

B. Gypsum

C. Bauxite

D. Ammonium bicarbonate

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Proximate analysis of coal determines its __________ content.

A. Moisture, ash, sulphur & volatile matter

B. Moisture & volatile matter

C. Moisture, sulphur, nitrogen & fixed carbon

D. None of these

Discuss this answer

The main product of high temperature carbonisation of coal is

A. Coke

B. Ammonia

C. Tar

D. Phenol

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Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

A. Explosive

B. Soap

C. Detergent

D. Analgesic drug

Discuss this answer

Accepted Answer

B. Ferric sulphate

Which of the following is used as a coagulant in treating turbid water?

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Pick out the wrong statement.

__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

Essential oils are usually obtained using

Bromine content in sea water may be around __________ ppm.

Use of hydrated lime in water treatment

Which of the following is the second major component of cement?

Metallic soap is __________ salt of fatty acids.

Catalyst used in the hydrogenation of oil is

Hydrochloric acid is also known as

Hydrolysis of sugar is called

Cellulose percentage in bamboo fibre is about

Absorption of SO3 in 97% H2SO4 is

__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.

In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by

99.5% purity oxygen is used in

Production of alcohol by fermentation of molasses is a/an __________ process.

Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

In sulphate pulp manufacture, the pressure and temperature in the digestor is

The purpose of tanning in leather industry is to

Riboflavin is a/an

The most stable allotropic form of phosphorous is the __________ phosphorous.

The process used for the manufacture of ethyl alcohol from molasses is

Viscosity index improver (like polystyrene or polyisobutylene) is added to lubricant to

Cement mainly contains

The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

Superior quality laboratory apparatus is made of the __________ glass having low thermal coefficient of expansion & high chemical resistance.

Starting raw material for the manufacture of alum is

Proximate analysis of coal determines its __________ content.

The main product of high temperature carbonisation of coal is

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

Also checkout

Which of the following is used as a coagulant in treating turbid water?

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Pick out the wrong statement.

__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

Essential oils are usually obtained using

Bromine content in sea water may be around __________ ppm.

Use of hydrated lime in water treatment

Which of the following is the second major component of cement?

Metallic soap is __________ salt of fatty acids.

Catalyst used in the hydrogenation of oil is

Hydrochloric acid is also known as

Hydrolysis of sugar is called

Cellulose percentage in bamboo fibre is about

Absorption of SO3 in 97% H2SO4 is

__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.

In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 2SO3), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by

99.5% purity oxygen is used in

Production of alcohol by fermentation of molasses is a/an __________ process.

Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

In sulphate pulp manufacture, the pressure and temperature in the digestor is

The purpose of tanning in leather industry is to

Riboflavin is a/an

The most stable allotropic form of phosphorous is the __________ phosphorous.

The process used for the manufacture of ethyl alcohol from molasses is

Viscosity index improver (like polystyrene or polyisobutylene) is added to lubricant to

Cement mainly contains

The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2/gm.

Superior quality laboratory apparatus is made of the __________ glass having low thermal coefficient of expansion & high chemical resistance.

Starting raw material for the manufacture of alum is

Proximate analysis of coal determines its __________ content.

The main product of high temperature carbonisation of coal is

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

Also checkout

In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by

The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.