Na₂CO₃.10H₂O is called

Question

Na₂CO₃.10H₂O is called

A. Washing soda

B. Soda ash

C. Slaked lime

D. Quicklime

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Brackish water which contains mostly dissolved salt, can be purified by the __________ process.

A. Reverse osmosis

B. Sand filter

C. Lime soda

D. Permutit

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The most commonly used substance to speed up the sedimentation of sewage is

A. Lime

B. Sulphuric acid

C. Chlorine

D. Sodium bisulphite

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Calcination of gypsum produces

A. Plaster of Paris

B. Salt cake

C. Nitre cake

D. Lime

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Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo?

A. Depithing

B. Digestion

C. Bleaching

D. None of these

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Nickel is not used as a catalyst in the __________ reaction.

A. Shift conversion

B. Oil hydrogenation

C. Steaming reforming of naphtha

D. Ammonia cracking/dissociation

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Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

A. 0.14

B. 0.34

C. 0.94

D. 1.4

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The yield of tar from high temperature carbonisation of dry coal is about __________ percent.

A. 3

B. 12

C. 22

D. 0.3

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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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Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

A. 10

B. 50

C. 80

D. 95

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Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.

A. Adsorbs

B. Oxidises

C. Reduces

D. Converts

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Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about

A. 0.1 to 0.5

B. 1 to 5

C. 5 to 10

D. 15 to 25

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Fat splitting catalyst is

A. CaCO₃

B. ZnO

C. Al₂O₃

D. Fe

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Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.

A. -5 to 0

B. 5 to 10

C. 30 to 50

D. 75 to 80

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Bisphenol A is produced by the condensation of acetone with

A. Formaldehyde

B. Ethyl alcohol

C. Diethyl ether

D. Phenol

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Cumene is the starting material for the production of

A. Benzoic acid

B. Phenol and acetone

C. Isoprene

D. Styrene

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Oil produced by solvent extraction

A. Has low free fatty acid content

B. Is odourless

C. Both (A) & (B)

D. Neither (A) nor (B)

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20% oleum means that in 100 kg oleum, there are 20 kg of

A. SO₃ and 80kg of H₂SO₄

B. H₂SO₄ and 80kg of SO₃

C. SO₃ for each 100 kg of H₂SO₄

D. None of these

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The major constituent of black liquor generated during paper manufacture is sodium

A. Sulphate

B. Carbonate

C. Hydroxide

D. Bi-carbonate

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Pick out the wrong statement.

A. Wine, rum & Vodka are prepared by the formulation of fruit juice, sugar beet & rye respectively

B. Protein catalysts are called enzymes

C. The rate of chemical reaction is independent of the concentration of reactants at high concentration of enzymes

D. Total sugar content in molasses is about 10%

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Main constituent of limestone is

A. CaCO₃

B. MgCO₃

C. Na₂CO₃

D. CaSO₄

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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

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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

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__________ acid is an unsaturated fatty acid.

A. Palmitic

B. Oleic

C. Stearic

D. Oxalic

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Which of the following is not present in bagasse fibre?

A. Cellulose

B. Lignin

C. Pentogens

D. None of these

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Liquefaction of gases cannot be done by

A. Exchange of heat with colder stream

B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion)

C. Merely compressing it beyond critical pressure

D. Adiabatic expansion against a piston or in a turbine

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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

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Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

A. Its calorific value is very less

B. Tar neutralises the residual acids present in pitch

C. It reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop

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

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The terminology 'BTX' used in coal tar distillation industry refers to

A. Benzol-toluol-xylol

B. Benzol-toluene-xylene

C. Benzene-toluol-xylol

D. Benzene-toluene-xylene

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Epoxy resin

A. Is a good adhesive

B. Is an elastomer

C. Cannot be used for surface coatings

D. Is a polyester

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Hydrogenation of vegetable oils is a/an __________ reaction.

A. Endothermic

B. Autocatalytic

C. Exothermic

D. Homogenous

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Accepted Answer

A. Washing soda

Na₂CO₃.10H₂O is called

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Brackish water which contains mostly dissolved salt, can be purified by the __________ process.

The most commonly used substance to speed up the sedimentation of sewage is

Calcination of gypsum produces

Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo?

Nickel is not used as a catalyst in the __________ reaction.

Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

The yield of tar from high temperature carbonisation of dry coal is about __________ percent.

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.

Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.

Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about

Fat splitting catalyst is

Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.

Bisphenol A is produced by the condensation of acetone with

Cumene is the starting material for the production of

Oil produced by solvent extraction

20% oleum means that in 100 kg oleum, there are 20 kg of

The major constituent of black liquor generated during paper manufacture is sodium

Pick out the wrong statement.

Main constituent of limestone is

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

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

__________ acid is an unsaturated fatty acid.

Which of the following is not present in bagasse fibre?

Liquefaction of gases cannot be done by

The chamber process is

Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

The terminology 'BTX' used in coal tar distillation industry refers to

Epoxy resin

Hydrogenation of vegetable oils is a/an __________ reaction.

Also checkout

Na2CO3.10H2O is called

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Brackish water which contains mostly dissolved salt, can be purified by the __________ process.

The most commonly used substance to speed up the sedimentation of sewage is

Calcination of gypsum produces

Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo?

Nickel is not used as a catalyst in the __________ reaction.

Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is

The yield of tar from high temperature carbonisation of dry coal is about __________ percent.

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.

Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.

Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about

Fat splitting catalyst is

Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.

Bisphenol A is produced by the condensation of acetone with

Cumene is the starting material for the production of

Oil produced by solvent extraction

20% oleum means that in 100 kg oleum, there are 20 kg of

The major constituent of black liquor generated during paper manufacture is sodium

Pick out the wrong statement.

Main constituent of limestone is

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

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

__________ acid is an unsaturated fatty acid.

Which of the following is not present in bagasse fibre?

Liquefaction of gases cannot be done by

The chamber process is

Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

The terminology 'BTX' used in coal tar distillation industry refers to

Epoxy resin

Hydrogenation of vegetable oils is a/an __________ reaction.

Also checkout

Na₂CO₃.10H₂O is called

Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

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.