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

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
by

1 Answer

Answer :

(A) Sodium sulphite and sodium bisulphite
by

Related questions

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

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Last Answer : (A) Sodium sulphide & sodium carbonate

Chemical name of Grignard reagent is (A) Sodium thiosulphate (B) Ethyl magnesium chloride (C) Sodium sulphite (D) Sodium bicarbonate

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Last Answer : (B) Ethyl magnesium chloride

Which of the following is responsible for permanent hardness of water? (1) magnesium bicarbonate (2) sodium chloride (3) calcium sulphate (4) calcium bicarbonate

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Last Answer : (3) calcium sulphate Explanation: Permanent hardness is caused by dissolved calcium sulfate (which is not removed by boiling). Hard water contains dissolved magnesium and calcium ions. These make ... . Temporary hardness is caused by dissolved calcium hydrogen carbonate (which is removed by boiling)

Which of the following is responsible for permanent hardness of water ? (1) magnesium bicarbonate (2) sodium chloride (3) calcium sulphate (4) calcium bicarbonate

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

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Doctor's solution used for sweetening of petroleum products is (A) Sodium plumbite (B) Sodium sulphite (C) Sodium thiosulphate (D) Lead sulphate

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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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Zeolite used in water softening process (cation exchange) is regenerated by washing with (A) Brine (B) Chloramines (C) Sodium bisulphite (D) Liquid chlorines

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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

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Comparing sulphate process with sulphite process, we find that __________ in the later. (A) Both temperature & pressure in the former is less than that (B) Both temperature & pressure in the former is more than that (C) Temperature is more in the former whereas pressure is more(D) Pressure is more in the former whereas temperature is less

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Last Answer : (B) Both temperature & pressure in the former is more than that

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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Last Answer : (B) Carbonate

By boiling water, hardness can be removed if it is due to (A) Calcium sulphate (B) Magnesium sulphate (C) Calcium nitrate (D) Calcium bicarbonate

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Last Answer : (D) Calcium bicarbonate 

Sodium bisulphite is used for __________ water. (A) Deaeration (B) Dechlorination (C) Both (A) & (B) (D) Neither (A) nor (B)

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The most economical pulp for the production of newsprint would be the __________ pulp. (A) Ground-wood (B) Sulphate (C) Sulphite (D) Semi-chemical

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Last Answer : (C) Sulphate pulp

Air can oxidize sodium sulphite in eq. solution but cannot do so in the case of sodium arsenite. If however, air is passed through a solution containi

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Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → Magnesium oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

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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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Bleaching of paper pulp is done with (A) Activated clay (B) Bromine (C) Chlorine or chlorine dioxide (D) Magnesium sulphite

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

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‘Plaster of paris’ chemically known as (1) Sodium Aluminate (2) Calcium sulphate (3) Spdium bicarbonate (4) Sodium acetate

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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

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. Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water. (A) SO3 (B) Cl2 (C) NH3 (D) SO2

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Can you mix sodium bicarbonate and magnesium chloride?

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Last Answer : Yes, it is possible.

The presence of which of the following salts in water causes corrosion in steam boilers? (1) Sodium Chloride (2) Magnesium Chloride (3) Calcium bicarbonate (4) Potassium bicarbonate

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What is "milk of magnesia" chemically? (1) Magnesium carbonate (2) Sodium bicarbonate (3) Calcium hydroxide (4) Magnesium hydroxide

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Why are cimetidine or ranitidine better antacids than sodium bicarbonate or magnesium or aluminium hydroxide ?

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Last Answer : Ans. If excess of NaHCO3 or Mg (OH)2 or Al (OH)3 is used, it makes the stomach alkaline and thus triggers the release of even more HCl. In contrast, cimetidine or ranitidine prevent the interaction of histamine with the receptor cells in the stomach wall and thus release lesser amount of HCl. 

What is “milk of magnesia” chemically ? (1) Magnesium carbonate (2) Sodium bicarbonate (3) Calcium hydroxide (4) Magnesium hydroxide

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Last Answer : Magnesium hydroxide

Activity of cytochrome oxidase is inhibited by (A) Sulphite (B) Sulphate (C) Arsenite (D) Cyanide

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Which of the following is not produced on commercial scale from sea water? (A) Bromine (B) Magnesium compounds (C) Potassium compounds (D) Sodium sulphate

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Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of (A) Calcium sulphate (B) Sodium chloride(C) Sodium sulphate(D) Magnesium chloride

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Last Answer : (B) Sodium chloride

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

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

Corrosion in boilers can be prevented by (A) Deaeration of feed water (B) Enhancing pH of feed water by adding alkali (C) Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion (D) All (A), (B) and (C)

Description : Corrosion in boilers can be prevented by (A) Deaeration of feed water (B) Enhancing pH of feed water by adding alkali (C) Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion (D) All (A), (B) and (C)

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

When a lead storage battery is discharged - (1) SO2 is evolved (2) Lead sulphate is consumed (3) Lead is formed (4) Sulphuric acid is consumed

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When a lead storage battery is discharged, (1) SO2 is evolved (2) Lead sulphate is consumed (3) Lead is formed (4) Sulphuric acid is consumed

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What is the most common salt in sea water? (1) Calcium carbonate (2) Potassium chloride (3) Sodium chloride (4) Magnesium sulphate

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Which one is the major component of Bordeaux mixture a) Copper sulphate b) Sodium chloride c) Calcium chloride d) Magnesium sulphate

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Description : What is the most common salt in sea water ? (1) Calcium carbonate (2) Potassium chloride (3) Sodium chloride (4) Magnesium sulphate

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What name is given to a mixture of bicarbonate of soda and tartaric acid used in cooking?

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Acetaldehyde on reaction with sodium hydrogen sulphite produces

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Acetaldehyde on reaction with sodium hydrogen sulphite produces

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The most commonly used chemical for de-chlorination of water, is (A) Sodium thiosulphate (B) Sodium bisulphate (C) Sodium sulphite (D) Sulphur-dioxide

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Last Answer : (C) Sodium sulphite 

Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator? (A) Cresylic acid (B) Copper sulphate (C) Calcium carbonate (D) Sodium carbonate

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In the Solvay process, the product from the calciner is (A) Light soda ash (B) Dense soda ash (C) Sodium bicarbonate (D) Dehydrated soda ash

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