In Kraft process of paper manufacture, white cooking liquor consists of caustic soda (A) Sodium sulphide & sodium carbonate (B) Sodium sulphite & sodium carbonate (C) Sodium sulphite & sodium sulphide (D) None of these

In Kraft process of paper manufacture, white cooking liquor consists of
caustic soda
(A) Sodium sulphide & sodium carbonate
(B) Sodium sulphite & sodium carbonate
(C) Sodium sulphite & sodium sulphide
(D) None of these
by

1 Answer

Answer :

(A) Sodium sulphide & sodium carbonate
by

Related questions

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

Description : 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

Last Answer : (D) Neutral sulphite semi-chemical

In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of (A) Concrete (B) Wood (C) Steel (D) Porcelain

Description : In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of (A) Concrete (B) Wood (C) Steel (D) Porcelain

Last Answer : (C) Steel

Cooking liquor in case of sulphite process is (A) Sodium sulphite and sodium bisulphite (B) Magnesium sulphite and free SO2 in acid medium (C) Magnesium sulphate and magnesium bicarbonate (D) None of these

Description : Cooking liquor in case of sulphite process is (A) Sodium sulphite and sodium bisulphite (B) Magnesium sulphite and free SO2 in acid medium (C) Magnesium sulphate and magnesium bicarbonate (D) None of these

Last Answer : (A) Sodium sulphite and sodium bisulphite

The major constituent of black liquor generated during paper manufacture is sodium (A) Sulphate (B) Carbonate (C) Hydroxide (D) Bi-carbonate

Description : The major constituent of black liquor generated during paper manufacture is sodium (A) Sulphate (B) Carbonate (C) Hydroxide (D) Bi-carbonate

Last Answer : (B) Carbonate

Pick out the wrong statement. (A) Kraft method of pulp manufacture can process all types of fibrous raw materials (B) Digestion time for bagasse is less than that for wood base materials (C) Both temperature and pressure in the digestor is less in case of the sulphite method as compared to that in the sulphate method (D) None of these

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Last Answer : (D) None of these

Washing soda is - (1) sodium sulphite (2) sodium bicarbonate (3) sodiun carbonate (4) sodium biosulphite

Description : Washing soda is - (1) sodium sulphite (2) sodium bicarbonate (3) sodiun carbonate (4) sodium biosulphite

Last Answer : (3) sodiun carbonate Explanation: Sodium carbonate (also known as washing soda, soda ash and soda crystals, and in the monohydrate form as crystal carbonate), Na2CO3, is the water-soluble sodium salt of carbonic acid.

__________ process is used for the manufacture of sodium carbonate by ammonia soda process. (A) Ostwald's (B) Bosch (C) Solvay (D) Haber's

Description : __________ process is used for the manufacture of sodium carbonate by ammonia soda process. (A) Ostwald's (B) Bosch (C) Solvay (D) Haber's

Last Answer : (C) Solvay

Sodium Carbonate is commonly known as - (1) Baking Soda (2) Washing Soda (3) Caustic Soda (4) Caustic Potash

Description : Sodium Carbonate is commonly known as - (1) Baking Soda (2) Washing Soda (3) Caustic Soda (4) Caustic Potash

Last Answer : (2) Washing Soda Explanation: Sodium carbonate (Na2CO3) is also known as washing soda, soda ash and soda crystals. It is a salt of carbonic acid, a chemical that produces a wide range of salts collectively known as carbonates. It can be used to remove stubborn stains from laundry.

Sodium Carbonate is commonly known as (1) Baking Soda (2) Washing Soda (3) Caustic Soda (4) Caustic Potash

Description : Sodium Carbonate is commonly known as (1) Baking Soda (2) Washing Soda (3) Caustic Soda (4) Caustic Potash

Last Answer : Washing Soda

Explain the manufacture of Sodium Hydroxide (Caustic Soda), NaOH by castner kellner cell

Description : Explain the manufacture of Sodium Hydroxide (Caustic Soda), NaOH by castner kellner cell 

Last Answer : Preperation--Sodium hydroxide is generally prepared commercially by the electrolysis of sodium chloride in Castner-Kellner cell. A brine solution is electrolysed using a mercury cathode and a carbon anode. Sodium ... The amalgam is treated with water to give sodium hydroxide and hydrogen gas.   

Sodium carbonate (soda ash) is not used in the manufacture of (A) Fire extinguishers (B) Sugar (C) Baking powder (D) Detergents

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Last Answer : (D) Detergents

Le-Blanc process is a primitive process for the manufacture of (A) Caustic soda (B) Soda ash (C) Bromine from sea water (D) Hydrochloric acid

Description : Le-Blanc process is a primitive process for the manufacture of (A) Caustic soda (B) Soda ash (C) Bromine from sea water (D) Hydrochloric acid

Last Answer : (B) Soda ash

Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda? (A) Diaphragm electrolytic cell process (B) Mercury electrolytic cell process (C) Lime-soda process (D) None of these

Description : Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda? (A) Diaphragm electrolytic cell process (B) Mercury electrolytic cell process (C) Lime-soda process (D) None of these

Last Answer : (C) Lime-soda process

Solvay process is used for the manufacture of (A) Caustic soda (B) Soda ash (C) Caustic potash D) Soda lime

Description : Solvay process is used for the manufacture of (A) Caustic soda (B) Soda ash (C) Caustic potash (D) Soda lime

Last Answer : (B) Soda ash

In the Kraft (sulphate) process for the paper manufacture, the digestor is made of (A) Cast iron (B) Stainless steel (C) Karbate carbon (D) Wrought iron

Description : In the Kraft (sulphate) process for the paper manufacture, the digestor is made of (A) Cast iron (B) Stainless steel (C) Karbate carbon (D) Wrought iron

Last Answer : (B) Stainless steel

Pick out the wrong statement. (A) Fibrillation of fibre during paper manufacture is done to develop the strength in paper (B) Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate number (C) Bagasse fibre contains both lignin & cellulose (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

Description : Pick out the wrong statement. (A) Fibrillation of fibre during paper manufacture is done to develop the strength in paper (B) Alkali consumption in digestion/cooking of bamboo is measured in terms ... both lignin & cellulose (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

Last Answer : (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

The contact process is involved in the manufacture of - (1) Nitric acid (2) Sulphuric acid (3) Ammonia (4) Caustic soda

Description : The contact process is involved in the manufacture of - (1) Nitric acid (2) Sulphuric acid (3) Ammonia (4) Caustic soda

Last Answer : (2) Sulphuric acid Explanation: It is also a central substance in the chemical industry. It is widely produced by contact process. Now days, sulphuric acid is prepared by contact process all over ... process is based upon the catalytic oxidation of sulfur dioxide (SO2) to sulfur trioxide (SO3).

Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine? (A) Na2CO3 (B) NaHCO3 (C) H2 (D) None of these

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Last Answer : (C) H2

Mercury cells for caustic soda manufacture, compared to diaphragm cells (A) Require lower initial investment (B) Require more power (C) Produce lower concentration NaOH (D) None of these

Description : Mercury cells for caustic soda manufacture, compared to diaphragm cells (A) Require lower initial investment (B) Require more power (C) Produce lower concentration NaOH (D) None of these

Last Answer : (D) None of these

Salt is the basic raw material for the manufacture of (A) Cement (B) Glass (C) Potteries (D) Caustic soda

Description : Salt is the basic raw material for the manufacture of (A) Cement (B) Glass (C) Potteries (D) Caustic soda

Last Answer : (D) Caustic soda

Paper pulp produced by Kraft/sulphate process is (A) Bleached easily (B) Dull white in color (C) Strong fibrous (D) Dark colored

Description : Paper pulp produced by Kraft/sulphate process is (A) Bleached easily (B) Dull white in color (C) Strong fibrous (D) Dark colored

Last Answer : (C) Strong fibrous

The doctor's solution comprises of sodium plumbite in (A) Alcohol (B) Water (C) Aqueous caustic soda (D) Soda ash

Description : The doctor's solution comprises of sodium plumbite in (A) Alcohol (B) Water (C) Aqueous caustic soda (D) Soda ash

Last Answer : (C) Aqueous caustic soda

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

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Last Answer : (C) Detergent

Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc? (A) Sodium silicate (B) Sodium borate (C) Sodium tripolyphosphate (STPP) (D) Caustic soda

Description : Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc? (A) Sodium silicate (B) Sodium borate (C) Sodium tripolyphosphate (STPP) (D) Caustic soda

Last Answer : (B) Sodium borate

Black liquor generated during paper manufacture is concentrated in a (A) Single effect evaporator (B) Single effect evaporator followed by a crystalliser (C) Multiple effect evaporator (D) Multiple effect evaporators followed by a crystalliser

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Last Answer : (C) Multiple effect evaporator

Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric acid) 7. Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

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Last Answer : 1. Copper oxide - CuO 2. Iron (III) chloride - FeCl3 3. Sodium hydroxide - NaOH 4. Iron (II) sulphide - FeS 5. Lead (II) oxide - PbO 6. Hydrogen nitrate (nitric acid) - HNO3 7. ... ) - H2SO4 8. Calcium hydroxide - Ca(OH)2 9. Magnesium carbonate - MgCO3 10.Ammonium carbonate - (NH4)2CO3

The manufacture of Kraft pulp is done by a/an __________ process.(A) Alkaline (B) Acidic (C) Neutral (D) None of these

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Last Answer : (A) Alkaline

Which of the following is used for removing air bubbles from glass during its manufacture? (1) Fledspar (2) Arsenic oxide (3) Potassium Carbonate (4) Soda Ash

Description : Which of the following is used for removing air bubbles from glass during its manufacture? (1) Fledspar (2) Arsenic oxide (3) Potassium Carbonate (4) Soda Ash

Last Answer : (2) Arsenic oxide

Sodium bicarbonate is commercially known as – (1) Washing soda (2) Baking soda (3) Caustic soda (4) Soda lime

Description : Sodium bicarbonate is commercially known as – (1) Washing soda (2) Baking soda (3) Caustic soda (4) Soda lime

Last Answer : (2) Baking soda Explanation: Baking Soda is Sodium bicarbonate or sodium hydrogen carbonate. It is primarily used in cooking (baking), as a leavening agent. It reacts with acidic components in batters, ... and grain in pancakes, cakes, quick breads, soda bread, and other baked and fried foods.

The common name for the com-pound having formal NaOH is – (1) Caustic soda (2) Caustic potash (3) Soda ash (4) Sodium hydroxide

Description : The common name for the com-pound having formal NaOH is – (1) Caustic soda (2) Caustic potash (3) Soda ash (4) Sodium hydroxide

Last Answer : (1) Caustic soda Explanation: Sodium hydroxide, also known as lye or caustic soda, has the molecular formula NaOH and is a highly caustic metallic base. It is a white solid available in pellets ... manufacture of pulp and paper, textiles, drinking water, soaps and detergents and as a drain cleaner.

The law of multiple proportions is illustrated by the two compounds [NCERT 1972] (A) Sodium chloride and sodium bromide (B) Ordinary water and heavy water (C) Caustic soda and caustic potash (D) Sulphur dioxide and sulphur trioxide

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Last Answer : (D) Sulphur dioxide and sulphur trioxide

Sodium bicarbonate is commercially known as (1) Washing soda (2) Baking soda (3) Caustic soda (4) Soda lime

Description : Sodium bicarbonate is commercially known as (1) Washing soda (2) Baking soda (3) Caustic soda (4) Soda lime

Last Answer : Baking soda

The common name for the compound having formal NaOH is (1) Caustic soda (2) Caustic potash (3) Soda ash (4) Sodium hydroxide

Description : The common name for the compound having formal NaOH is (1) Caustic soda (2) Caustic potash (3) Soda ash (4) Sodium hydroxide

Last Answer : Caustic soda

How is Sodium Carbonate (Washing Soda), Na2CO3·10H2O manufactured by “Solvay Process”

Description : How is Sodium Carbonate (Washing Soda), Na2CO3·10H2O manufactured by “Solvay Process” 

Last Answer : Principle-- In this process, advantage is taken of the low solubility of sodium hydrogencarbonate whereby it gets precipitated in the reaction of sodium chloride with ammonium hydrogencarbonate. The latter is prepared ... treated with Ca(OH)2. Calcium chloride is obtained as a by-product. 

Both white phosphorous as well as red phosphorous (A) Are soluble in CS2 (B) Burns when heated in air (C) Reacts with hot caustic soda solution to give Phosphine (D) All (A), (B), and (C)

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Last Answer : (B) Burns when heated in air

Ammonia present in the coke oven gas is removed by washing with (A) Caustic solution (B) Dilute ammoniacal liquor (C) Dilute HCl (D) Ethanolamine

Description : Ammonia present in the coke oven gas is removed by washing with (A) Caustic solution (B) Dilute ammoniacal liquor (C) Dilute HCl (D) Ethanolamine

Last Answer : (B) Dilute ammoniacal liquor

Viscose rayon (A) Cannot be made from sulphite pulp (B) Utilises H2SO4 , NaOH and CS2 during its manufacture (C) Cannot yield textile grade fibre (D) None of these

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Last Answer : (B) Utilises H2SO4 , NaOH and CS2 during its manufacture

. Chemical name of soda ash is (A) Sodium bicarbonate (B) Sodium thiosulphate (C) Potassium carbonate (D) None of these

Description : . Chemical name of soda ash is (A) Sodium bicarbonate (B) Sodium thiosulphate (C) Potassium carbonate (D) None of these

Last Answer : (D) None of these

__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine. (A) Chlorine (B) Ammonium chloride (C) Sodium carbonate (D) Sodium bi-carbonate

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Last Answer : (A) Chlorine

Nickel made/clad equipments are suitable for handling (A) Ammonia (both aqueous & anhydrous) (B) Fruit juices, milk & its products and caustic soda solution (C) Nitric acid & hydrochloric acid (concentrated) (D) Sulphuric acid (concentrated)

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Last Answer : (B) Fruit juices, milk & its products and caustic soda solution

Tall oil obtained as a by-product from the black liquor recovery is (A) A black, sticky & viscous liquid (B) Used in the manufacture of greases, emulsions & soaps (C) Composed mainly of rosin & fatty acids (D) All (A), (B) & (C)

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Last Answer : (D) All (A), (B) & (C)

Complete removal of __________ from gasoline is done by Unisol process using caustic soda and methyl alcohol. (A) Waxes (B) Mercaptans (C) Asphalt (D) Diolefins

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A multiple effect evaporator has a capacity to process 4000 kg of solid caustic soda per day, when it is concentrating from 10% to 25% solids. The water evaporated in kg per day is (A) 6000 (B) 24000 (C) 60000 (D) 48000

Description : A multiple effect evaporator has a capacity to process 4000 kg of solid caustic soda per day, when it is concentrating from 10% to 25% solids. The water evaporated in kg per day is (A) 6000 (B) 24000 (C) 60000 (D) 48000

Last Answer : (B) 24000

Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda? (A) High cost of mercury (B) High specific gravity of mercury (C) Non-availability of high purity mercury (D) Pollution of water stream by mercury

Description : Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda? (A) High cost of mercury (B) High specific gravity of mercury (C) Non-availability of high purity mercury (D) Pollution of water stream by mercury

Last Answer : (D) Pollution of water stream by mercury

Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials. (A) Coke and sand (B) Brine and coal (C) Coke and caustic soda (D) None of these

Description : Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials. (A) Coke and sand (B) Brine and coal (C) Coke and caustic soda (D) None of these

Last Answer : (B) Brine and coal

Pick out the wrong statement. (A) For the manufacture of styrene, the major raw materials are benzene and ethylene (B) One important copolymer of styrene is SBR, which is widely used in the manufacture of automobile tyres (C) Manufacture of phenol by chloroben-zene-eaustic process involves. The chlorination of benzene, causticisation and hydrolysis (D) Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available

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Last Answer : (D) Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available

Sodium bicarbonate is produced during soda ash manufacture using a __________ tower. (A) Plate (B) Baffle (C) Packed (D) None of these

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Last Answer : (B) Baffle

Washing soda is the common name of- (1) Calcium Carbonate (2) Calcium Bi-Carbonate (3) Sodium Carbonate (4) Sodium Bi-Carbonate

Description : Washing soda is the common name of- (1) Calcium Carbonate (2) Calcium Bi-Carbonate (3) Sodium Carbonate (4) Sodium Bi-Carbonate

Last Answer : (3) Sodium Carbonate Explanation: Washing soda, sodium carbonate decahydrate, efflorescent crystals used for washing, especially textiles. It is a compound of sodium (q.v.).

Another name for baking soda is : (1) Sodium bicarbonate (2) Sodium carbonate (3) Sodium sulphate (4) Sodium hydroxide

Description : Another name for baking soda is : (1) Sodium bicarbonate (2) Sodium carbonate (3) Sodium sulphate (4) Sodium hydroxide

Last Answer : (1) Sodium bicarbonate Explanation: Sodium bicarbonate (NaHCO2)is known as baking soda.

The chemical name of baking soda is - (1) Sodium carbonate (2) Sodium bicarbonate (3) Sodium chloride (4) Sodium nitrate

Description : The chemical name of baking soda is - (1) Sodium carbonate (2) Sodium bicarbonate (3) Sodium chloride (4) Sodium nitrate

Last Answer : (2) Sodium bicarbonate Explanation: Sodium bicarbonate (NaHCO3) is also known as baking soda. It is a chemical leavening agent which is added to baked goods before cooking to produce carbon dioxide and cause them to 'rise'.