Which one of the following is used as preservative for foodstuff ? (1) Sodium Benzoate (2) Picric acid (3) Glycerine (4) Sodium Chloride

1 Answer

Answer :

Sodium Benzoate

Related questions

Description : Which one of the following is used as preservative for foodstuff? (1) Sodium Benzoate (2) Picric acid (3) Glycerine (4) Sodium Chloride

Last Answer : (1) Sodium Benzoate Explanation: Sodium benzoate is a preservative. It is bacteriostatic and fungistatic under acidic conditions. It is most widely used in acidic foods such as salad dressings (vinegar), ... (vinegar), and condiments. It is also used as a preservative in medicines and cosmetics.

Description : Methyl benzoate on hydrolysis gives (a) Acetic acid (b) Benzoic acid (c) Picric acid (d) Phenylacetic acid

Last Answer : Benzoic acid

Description : Which one of the following is used as a food preservative? (1) Sodium benzoate (2) Sodium thiosulphate (3) Sodium hydroxide (4) Sodium bicarbonate

Last Answer : (1) Sodium. benzoate Explanation: Sodium benzoate has the chemical formula. NaC6H5CO2, it is a widely used food preservative, with E number E211. It is the sodium salt of benzoic acid and exists in this form when dissolved in water. It can be produced by reacting sodium hydroxide with benzoic acid.

Description : Which one of the following is used as a food preservative ? (1) Sodium benzoate (2) Sodium thiosulphate (3) Sodium hydroxide (4) Sodium bicarbonate

Last Answer : Sodium benzoate

Description : Benzoyl chloride on basic-hydrolysis (NaOH/H2O) gives : (a) Benzoic acid (b) Methyl benzoate (c) Sodium benzoate (d) Ethyl benzoate

Last Answer : Sodium benzoate

Description : Which of the following reactions does not produce benzene as one of the products? (a) Treating benzenediazonium chloride with H3PO2 (b) Distilling phenol with zinc dust (c) Fusing sodium benzoate with NaOH (d) Fusing sodium benzenesulfonate with NaOH

Last Answer : Fusing sodium benzenesulfonate with NaOH

Description : Which one of the following substances is used for preservation of food grains? (1) Sodium benzoate (2) Vinegar (3) Sodium chloride (4) Potassium permanganate

Last Answer : (1) Sodium benzoate Explanation: Sodium benzoate is used for the preservation of food. It has the chemical formula NaC6H5CO2. It is the sodium salt of benzoic acid and exists in ... by reacting sodium hydroxide with benzoic acid. It is bacteriostatic and ftmgistatic under acidic conditions.

Description : Which one of the following substances is used for preservation of food grains? (1) Sodium benzoate (2) Vinegar (3) Sodium chloride (4) Potassium permanganate

Last Answer : Sodium benzoate

Description : The permanent preservative, which is used for preservation of fruit and vegetables, is— (A) Sodium chloride (B) Potassium metabisulphate (C) Potassium sulphate (D) Sugar

Last Answer : (B) Potassium metabisulphate

Description : Which of the following does not give benzoic acid on hydrolysis? (1) phenyl cyanide (2) benzoyl chloride (3) benzyl chloride (4) methyl benzoate

Last Answer : (3) benzyl chloride Explanation: Hydrolysis is any chemical reaction in which a molecule of water ruptures one or more chemical bonds.

Description : When benzaldehyde is heated with concentrated NaOH, it gives : (a) Benzyl alcohol (b) Sodium benzoate (c) Benzoic acid (d) Benzyl alcohol + Sodium benzoate

Last Answer : Benzyl alcohol + Sodium benzoate

Description : The substance most commonly used as a food preservative is – (1) sodium carbonate (2) tartaric acid (3) acetic acid (4) sodium salt of benzoic acid

Last Answer : (4) sodium salt of benzoic acid Explanation: A preservative is a naturally occurring or synthetically produced substance that is added to products such as foods, pharmaceuticals, paints, biological ... can be antioxidants such as oxygen absorbers, which inhibit the oxidation of food constituents.

Description : The substance most commonly used as a food preservative is (1) sodium carbonate (2) tartaric acid (3) acetic acid (4) sodium salt of benzoic acid

Last Answer : sodium salt of benzoic acid

Description : The substance most commonly used as a food preservative is (a) sodium bicarbonate (b) tartaric acid (c) acetic acid (d) benzoic acid

Last Answer : Ans:(d)

Description : An antiknock for petrol is - (1) sodium hydroxide (2) ethanol (3) sodium benzoate (4) lead tetraethyl

Last Answer : (4) lead tetraethyl Explanation: The organic compound that is used as an antiknock agent in petroleum is tetraethyl lead. This is a lead based organic compound.

Description : Sodium benzoate on heating with soda-lime gives : (a) Sodium phenoxide (b) Benzene (c) Benzaldehyde (d) Benzophenone

Last Answer : Benzene

Description : Hydrochloric acid is also known as - (1) Galic acid (2) Picric acid (3) Muriatic acid (4) Chloric acid

Last Answer : (3) Muriatic acid Explanation: Hydrochloric acid was historically called acidum sails, muriatic acid, and spirits of salt because it was produced from rock salt and green vitriol and later ... similar substances common salt and sulfuric acid. Hydrochloric acid is found naturally in gastric acid.

Description : Which of the following is not a carboxylic acid? (a) Malonic acid (b) Acetic acid (c) Picric acid (d) Adipic acid

Last Answer : Picric acid

Description : Which of the following compounds is least acidic? (a) HCl (b) Phenol (c) Acetylene (d) Picric acid

Last Answer : Acetylene

Description : Which of the following is used as an antifreeze? (a) Ethylene glycol (b) Glycerol (c) Diethyl ether (d) Picric acid

Last Answer : Ethylene glycol

Description : Hydrochloric acid is also known as (1) Galic acid (2) Picric acid (3) Muriatic acid (4) Chloric acid

Last Answer : Muriatic acid

Description : Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and (A) Sulphuric acid (B) Phosphoric acid (C) Hydrochloric acid (D) Hydrofluoric acid

Last Answer : (A) Sulphuric acid

Description : Glycerine and what other substance are made by heatin animal fats or vegetable oils with sodium hydroxide?

Last Answer : ANSWER: SOAP

Description : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) on reaction with NaOH/`I_(2)` yeilds sodium benzoate. Co

Last Answer : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) ... `(H_(2)//Pd-C)` gives a racemic mixture

Description : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) on reaction with NaOH/`I_(2)` yeilds sodium benzoate. Co

Last Answer : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) ... `(H_(2)//Pd-C)` gives a racemic mixture

Description : Which of the following esters produces butyric acid and phenol on hydrolysis? (a) Phenyl butyrate (b) Butyl benzoate (c) Benzyl propionate (d) Phenyl propionate

Last Answer : Phenyl butyrate

Description : Picric acid is:

Last Answer : Picric acid is: A. B. C. D.

Description : Picric acid is a yellow coloured compound. Its chemical name is

Last Answer : Picric acid is a yellow coloured compound. Its chemical name is A. m-nitrobenzoic acid B. 2, 4, 6-trinitrophenol C. trinitrotoluene D. trinitroaniline

Description : Alkaloids are NOT precipitated by (A) Mayer's reagent (B) Dragendroff Reagent (C) Picric acid (D) Millon's reagent

Last Answer : (D) Millon's reagent

Description : Of your monthly budget, how much goes towards foodstuff?

Last Answer : We have a family of 5. I’d say food is probably our 3rd largest expense, after our child care and mortgage. It might even bump out our mortgage some months and move to the number 2 spot. We don’t limit our spending on food at all. If there is something we want, we get it.

Description : What kind of foodstuff is Monterey Jack?

Last Answer : (It was also a cartoon's name 'What's for breakfast?'

Description : Which compound of sodium is used to separate soap from glycerine?

Last Answer : Sodium chloride

Description : A drug which prevents uric acid synthesis by inhibiting the enzyme Xanthine oxidase is (A) Aspirin (B) Allopurinal (C) Colchicine (D) Phenyl benzoate

Last Answer : Answer : B

Description : 6 to 10% solution of acetic acid is used as a preservative for various food items. It is commonly known as?

Last Answer : Vinegar

Description : The main component of liquid bleach is: (1) Sodium chloride (2) Sodium hypochlorite (3) Hydrochloric acid (4) Sodium hypochlorate

Last Answer : (2) Sodium hypochlorite Explanation: Sodium hypochlorite bleaches are also called chlorine or liquid household bleach. They are the more powerful laundry bleaches; they are used to whiten and disinfect ... either 5.25 percent (regular strength) or 6 percent sodium hypochlorite (ultra strength).

Description : 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 → ... oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Last Answer : (a) Iron + Chlorine → Iron (III) chloride 4Fe + 3Cl2 → 2F2Cl3 (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water 2Mg + 2H2SO4 → 2MgSO4 + 2H2 (c) Magnesium + oxygen → Magnesium oxide 2Mg ... hydroxide CaO + H2O → Ca(OH)2 (e) Sodium + chlorine → Sodium chloride 2Na + Cl2 → 2NaCl

Description : 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 ... Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

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

Description : Which of the following is not a constituent of normal urine? (a) Albumin (b) Urea (c) Sodium chloride (d) Uric acid

Last Answer : Albumin

Description : Calcium carbonate is most soluble in: w) 0.2 Molar Sodium carbonate x) 0.1 Molar Calcium chloride y) 0.1 Molar Sodium hydroxide z) 0.1 Molar Hydrochloric acid

Last Answer : ANSWER: Z -- 0.1 MOLAR HYDROCHLORIC ACID

Description : Which of the following aqueous solutions would hav the lowest boiling point? Would it be a 1.0 molal solution of: w) Hydrochloric acid x) Sodium Hydroxide y) Acetic Acid, z) Magnesium Chloride

Last Answer : ANSWER: Y -- ACETIC ACID

Description : The main component of liquid bleach is: (1) Sodium chloride (2) Sodium hypochlorite (3) Hydrochloric acid (4) Sodium hypochlorate

Last Answer : Sodium hypochlorite

Description : Malathion is a/an - (1) insecticide (2) fumigant (3) preservative (4) pesticide

Last Answer : (1) insecticide Explanation: Malathion is an organophosphate (OP) insecticide that has been registered for use in the United States since 1956. It is widely used in agriculture, residential ... health pest control programs such as mosquito eradication. It is of relatively low human toxicity.

Description : Ethylene diamine tetraacetoacetate (pron: te-tra-a-see-tow-AS-e-tate) (EDTW) is often used for which of the following: w) Determine hardness of water x) Measure the amount of zinc in a solution. y) A preservative in foods z) All of the above

Last Answer : ANSWER: Z -- ALL OF THE ABOVE 

Description : A gaseous organic compound that is best known for its use in preservative solutions has the chemical formula HCHO (read: H - C - H CHEM-92; Short Answer: Give me the name and atomic number ... element is a clear, odorless gas. This element is one of the essential ingredients in the burning process.

Last Answer : ANSWER: OXYGEN ATOMIC NUMBER = 8

Description : Malathion is a/an (1) insecticide (2) fumigant (3) preservative (4) pesticide

Last Answer : insecticide

Description : Transparent soaps (e.g. Pears) are (A) Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency (B) ... (C) Metallic soaps with frothing agent from which glycerine has not been recovered (D) None of these

Last Answer : (A) Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency

Description : White phosphorus is generally kept under – (1) Alcohol (2) Water (3) Glycerine (4) Kerosene oil

Last Answer : (2) Water Explanation: White phosphorous is kept under water because it reacts with oxygen but not water. Besides, it is insoluble in water. It presents a significant fire hazard due to its extreme reactivity with atmospheric oxygen.

Description : Soap is prepared by boiling caustic soda with – (1) Alcohol (2) Kerosene oil (3) Glycerine (4) Fats

Last Answer : (4) Fats Explanation: The most basic kind of soap is made from cuastic soda and animal fat. The two are heated together, and then cooled. The process is called "saponification". In technical ... hydrolysis of triglyeerides which are esters of fatty acids, to form the sodium salt, of a carboxylate.

Description : Explain the effect of increasing the temperature of a liquid, on intermolecular forces operating between its particles. What will happen to the viscosity of a liquid if its temperature is increased? Arrange the following in increasing order of viscosity-water, hexane, glycerine.

Last Answer : Ans. On increasing the temperature , the kinetic energy of liquid molecules increases so that it can overcome the attractive forces between the molecules and hence liquid can flow more easily i.e. viscosity decreases. Order of increasing viscosity : hexane < water < glycerine.

Description : White phosphorus is generally kept under (1) Alcohol (2) Water (3) Glycerine (4) Kerosene oil

Last Answer : Water