Calgon used in water treatment is chemically (A) Sodium phosphate (B) Sodium hexametaphosphate (C) Calcium phosphate (D) Tricresyl phosphate

Calgon used in water treatment is chemically
(A) Sodium phosphate
(B) Sodium hexametaphosphate
(C) Calcium phosphate
(D) Tricresyl phosphate
by

1 Answer

Answer :

(B) Sodium hexametaphosphate
by

Related questions

Tricresyl phosphate is chemically represented as (A) (CH3 C6 H4 )3 PO4 (B) Ca10 (PO4 )3F6 (C) (NH4 )2HPO4 (D) NH4H2PO4

Description : Tricresyl phosphate is chemically represented as (A) (CH3 C6 H4 )3 PO4 (B) Ca10 (PO4 )3F6 (C) (NH4 )2HPO4 (D) NH4H2PO4

Last Answer : (A) (CH3 C6 H4 )3 PO4

Reaction of Cresylic acid with __________ produces Tricresyl phosphate.(A) Phosphorous pentoxide (B) Phosphorous oxychloride (C) Ammonium phosphate (D) Calcium phosphate

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Reaction of ortho-phosphoric acid with soda ash produces (A) Sodium Tributyl phosphate (STPP) (B) Tricresyl phosphate (C) Tributyl phosphate (D) Nitrophosphate

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Permanent hardness of water can be removed by (A) Addition of soda ash to it (B) Treating it with zeolites (C) Passing it through sodium hexametaphosphate (D) All (A), (B), and (C)

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Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser? (A) Ethylene glycol (B) Stearic acid estors (C) Tricresyl phosphate (D) Esters of phthalic acid

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Reaction of nitric acid and sulphuric acid with phosphate rock produces (A) Nitrophosphate (B) Diammonium phosphate (C) Tricresyl phosphate (D) Tributyl phosphate

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Last Answer : (A) Nitrophosphate

(CH3 C6 H4 )3 PO4 is the chemical formula of (A) Triple superphosphate (B) Tricresyl phosphate (C) Fluorapatite (D) Superphosphate

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The commercial name for calcium hydride is (a) Lime (b) Hydrolith (c) Slaked lime (d) Calgon

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According to IS : 2720 - 1965, the composition of a dispersing solution used in pipette analysis for determining the size of particles, is (A) sodium-hexametaphosphate 33 g, sodium carbonate 7 g and distilled water one litre (B) sodium-hexametaphosphate 7 g, sodium carbonate 33 g and distilled water one litre (C) sodium-hexametaphosphate 23 g, sodium carbonate 17 g and distilled water one litre (D) None of these

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Last Answer : Answer: Option A

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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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Last Answer : (4) Magnesium hydroxide Explanation: agnesium hydroxide is an inorganic compound with the chemical formula Mg(OH)2. As a suspension in water, it is often called milk of magnesia because of its milk-like appearance. The solid mineral form of magnesium hydroxide is known as brucite.

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Which of the following is a constituent of coffee? (A) Caffeine (B) Nicotine (C) Calgon (D) Lignin

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Main component of bone ash is (A) Calcium sulphate (B) Calcium phosphate (C) Calcium carbonate (D) Sodium phosphate

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Tri-sodium phosphate is used in boiler water treatment to reduce (A) Turbidity (B) Caustic embrittlement (C) Suspended silica (D) Dissolved oxygen

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Pick out the wrong statement. (A) Yellow phosphorous which is the most reactive allotropic form of phosphorous is transported under water (B) Apatite is the principal material present in phosphate rock which is chemically Ca10 (PO4 )6 (F, Cl, OH) (C) Urea is more hygroscopic than ammonium nitrate (D) Nitrogen fixation means the process of bringing atmospheric nitrogen into combination i.e. into nitrogen compound fo

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The main chemical substance present in the bones and teeth of animals is: A. Sodium Chloride B. Sugar C. Calcium Phosphate D. Calcium sulphate

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The chemical name of quartz is (a) Calcium oxide (b) Calcium phosphate (c) Sodium phosphate (d) Sodium silicate

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During dehydration what is the substance that is usually lost by the body? (1) Sugar (2) Sodium chloride (3) Calcium phosphate (4) Potassium chloride

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The resting potential of a neuron is dependent on what two ions? a) lead and calcium ions b) calcium and phosphate ions c) sodium and potassium ions d) potassium and phosphate ions

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During dehydration what is the substance that is usually lost by the body ? (1) Sugar (2) Sodium chloride (3) Calcium phosphate (4) Potassium chloride

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The chemical name of quartz is (1) Calcium oxide (2) Calcium phosphate (3) Sodium phosphate (4) Sodium silicate

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Phosphates (e.g., tricresyl, tributyl, tetrabutyl, triphenyl etc.) are addedto polymers to act as(A) Hardeners(B) Anti-shrinkage agents(C) Plasticisers(D) Transparency improver

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Nitrolime is chemically known as (A) Calcium nitrate (B) Ammonium nitrate (C) Calcium ammonium nitrate (CAN) (D) None of these

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Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on (A) Slaked lime (B) Soda lime (C) Calcium perchlorate (D) None of these

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Glauber's salt is chemically (A) Calcium sulphate (B) Potassium sulphate (C) Potassium chlorate (D) None of these

Description : Glauber's salt is chemically (A) Calcium sulphate (B) Potassium sulphate (C) Potassium chlorate (D) None of these

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Pick out the wrong statement. (A) Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate (B) Glass is decolorized during its manufacture by adding antimony oxide, manganese dioxide or arsenic oxide (C) Ordinary glass is represented chemically by Na2O . CaO . 6SiO2 (D) Red color is imparted to glass by addition of arsenic oxide

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Diamond is chemically (a) a mixture of metal carbonates (b) pure carbon (c) a pure form of sand (d) a mixture of calcium and magnesium phosphates

Description : Diamond is chemically (a) a mixture of metal carbonates (b) pure carbon (c) a pure form of sand (d) a mixture of calcium and magnesium phosphates

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Philosopher’s wool is chemically - (1) Aluminium oxide (2) Magnesium oxide (3) Zinc oxide (4) Calcium oxide

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Give the formula of Borax. Borax is chemically called as. Borax Na2B4O7 10H2O is chemically called as hydrated sodium tetra borate

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Chemically, fats are esters of long carbon-chain acids and which of the following: w) ethanol x) glycerol y) ethylene glycol z) sodium hydroxide

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CaH4 (PO4 )2 is the chemical formula of (A) Superphosphate (B) Triple superphosphate (C) Calcium phosphate (D) Meta phosphoric acid

Description : CaH4 (PO4 )2 is the chemical formula of (A) Superphosphate (B) Triple superphosphate (C) Calcium phosphate (D) Meta phosphoric acid

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Which of the following is not a mixed fertiliser? (A) Nitrophosphate (B) Calcium ammonium nitrate (CAN) (C) Ammonium phosphate (D) None of these

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Last Answer : (B) Calcium ammonium nitrate (CAN)

Rock phosphate constitutes mainly of (A) Fluorapatite (B) Di-calcium phosphate (C) Mono-calcium phosphate (D) Di-ammonium phosphate

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Last Answer : (A) Fluorapatite

The main constituent of rock phosphate is (A) Mono-calcium phosphate (B) Di-calcium phosphate (C) Fluorspar (D) None of these

Description : The main constituent of rock phosphate is (A) Mono-calcium phosphate (B) Di-calcium phosphate (C) Fluorspar (D) None of these

Last Answer : (B) Di-calcium phosphate

________ content of the phosphate rock is the pollutant of primary interest in a phosphatic fertiliser plant. (A) Calcium (B) Fluorine (C) Phosphorous (D) Sulphur

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Last Answer : (B) Fluorine

Main constituent of bone ash is (A) Ammonium phosphate (B) Calcium phosphate (C) Animal charcoal (D) Ammonium sulphate

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Last Answer : (B) Calcium phosphate

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)

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