Hydrolysis of fats by alkali is called (A) Saponification number (B) Saponification (C) Both (A) and (B) (D) None of these

Hydrolysis of fats by alkali is called (A) Saponification number (B) Saponification (C) Both (A) and (B) (D) None of these
by

1 Answer

Answer :

Answer : B
by
selected

Related questions

Saponification: (A) Hydrolysis of fats by alkali (B) Hydrolysis of glycerol by liposes (C) Esterification (D) Reduction

Description : Saponification: (A) Hydrolysis of fats by alkali (B) Hydrolysis of glycerol by liposes (C) Esterification (D) Reduction

Last Answer : Answer : A

Alkaline hydrolysis of oils (or fats) is called : (a) Saponification (b) Fermentation (c) Diazotization (d) Rancidification

Description : Alkaline hydrolysis of oils (or fats) is called : (a) Saponification (b) Fermentation (c) Diazotization (d) Rancidification

Last Answer : Saponification

Saponification involves the hydrolysis of fats and oils by- (1) water (2) washing soda (3) stearic acid (4) caustic soda

Description : Saponification involves the hydrolysis of fats and oils by- (1) water (2) washing soda (3) stearic acid (4) caustic soda

Last Answer : (4) caustic soda Explanation: Caustic soda (sodium hydroxide) is a versatile alkali. Its main uses are in the manufacture of pulp and paper, alumina, soap and detergents, petroleum products and chemical production.

Liquid oils can be converted to solid fats by (a) Hydrogenation (b) Saponification (c) Hydrolysis (d) Oxidation of double bonds

Description : Liquid oils can be converted to solid fats by (a) Hydrogenation (b) Saponification (c) Hydrolysis (d) Oxidation of double bonds

Last Answer : Hydrogenation

Basic-hydrolysis of esters is called (a) Acetylation (b) Acidification (c) Esterification (d) Saponification

Description : Basic-hydrolysis of esters is called (a) Acetylation (b) Acidification (c) Esterification (d) Saponification

Last Answer : Saponification

The hydrolysis of a fat using a solution of a strong hydroxide is called: w) neutralization x) esterification y) saponification z) condensation

Description : The hydrolysis of a fat using a solution of a strong hydroxide is called: w) neutralization x) esterification y) saponification z) condensation

Last Answer : ANSWER: Y -- SAPONIFICATION

The process involved in making soap is (1) Saponification (2) Hydrolysis (3) Condensation (4) Polymerization

Description : The process involved in making soap is (1) Saponification (2) Hydrolysis (3) Condensation (4) Polymerization

Last Answer : (1) Saponification Explanation: Saponification is a process that produces soap, usually from fats and lye. In technical teens, saponification involves base (usually caustic soda NaOH) hydrolysis ... of a carboxylate. In addition to soap, such traditional saponification processes produces glycerol.

The process involved in making soap is (1) saponification (2) hydrolysis (3) condensation (4) polymerisation

Description : The process involved in making soap is (1) saponification (2) hydrolysis (3) condensation (4) polymerisation

Last Answer : saponification

Oils and fats are converted to soap in a process called (A) Hydrogenation (B) Esterification (C) Saponification (D) None of these

Description : Oils and fats are converted to soap in a process called (A) Hydrogenation (B) Esterification (C) Saponification (D) None of these

Last Answer : (C) Saponification

Glycerol released from adipose tissue by hydrolysis of triglycerides is mainly (A) Taken up by liver (B) Taken up by extrahepatic tissues (C) Reutilised in adipose tissue (D) Excreted from the body FATS AND FATTY ACID METABOLISM 85

Description : Glycerol released from adipose tissue by hydrolysis of triglycerides is mainly (A) Taken up by liver (B) Taken up by extrahepatic tissues (C) Reutilised in adipose tissue (D) Excreted from the body FATS AND FATTY ACID METABOLISM 85

Last Answer : Answer : A

Pick out the wrong statemen(A) Autocatalytic reactions are exemplified by microbial fermentation reactions (B) The slowest step has the greatest influence on the overall reaction rate in case of an irreversible series reaction (C) The fractional conversion at any time is same for both the constant as well as the variable volume system in case of an irreversible unimolecular type first order reaction (D) Hydrolysis of ester in presence of alkali or acid is a zero order reaction

Description : Pick out the wrong statemen (A) Autocatalytic reactions are exemplified by microbial fermentation reactions (B) The slowest step has the greatest influence on the overall reaction rate in case of an ... reaction (D) Hydrolysis of ester in presence of alkali or acid is a zero order reaction

Last Answer : (D) Hydrolysis of ester in presence of alkali or acid is a zero order reaction

`XeF_(2)` on hydrolysis (in the presence of alkali) yield :

Description : `XeF_(2)` on hydrolysis (in the presence of alkali) yield :

Last Answer : `XeF_(2)` on hydrolysis (in the presence of alkali) yield : A. `XeOF_(4)` B. `XeO_(3)` C. `XeO_(2)F_(2)` D. Xe

The main cause of rancidity in of fats and foods is the oils - (1) hydrolysis (2) oxidation (3) clarification (4) reduction

Description : The main cause of rancidity in of fats and foods is the oils - (1) hydrolysis (2) oxidation (3) clarification (4) reduction

Last Answer : (2) oxidation Explanation: Rancidity in foods is due to the complete or incomplete oxidation or hydrolysis of fats and oils when exposed to air light, moisture or by bacterial action, resulting in unpleasant taste and odor.

The end products of saponification: (A) glycerol (B) acid (C) soap (D) Both (A) and (C)

Description : The end products of saponification: (A) glycerol (B) acid (C) soap (D) Both (A) and (C)

Last Answer : Answer : D

Iodine number denotes (A) Degree of unsaturation (B) Saponification number (C) Acid number (D) Acetyl number

Description : Iodine number denotes (A) Degree of unsaturation (B) Saponification number (C) Acid number (D) Acetyl number

Last Answer : Answer : A

Saponification number indicates (A) Unsaturation in fat (B) Average M.W of fatty acid (C) Acetyl number (D) Acid number

Description : Saponification number indicates (A) Unsaturation in fat (B) Average M.W of fatty acid (C) Acetyl number (D) Acid number

Last Answer : Answer : B

Saponification number is (A) mg of KOH required to saponify one gm of fat or oil (B) mg of KOH required to neutralize free fatty acids of one gms of fat (C) mg of KOH required to neutralize the acetic acid obtained by saponification of one gm of fat after it has been acetylated (D) None of these

Description : Saponification number is (A) mg of KOH required to saponify one gm of fat or oil (B) mg of KOH required to neutralize free fatty acids of one gms of fat (C) mg of KOH required to neutralize the acetic acid obtained by saponification of one gm of fat after it has been acetylated (D) None of these

Last Answer : Answer : C

Does saponification number of a fat molecule increase or decrease with the molecular weight of the fat?

Description : Does saponification number of a fat molecule increase or decrease with the molecular weight of the fat?

Last Answer : Decreases with increase in molecular weight of fat.

What is saponification?

Description : What is saponification?

Last Answer : Hydrolysis of fat by alkali is called are saponification.

The degree of unsaturation of a fat can be determined by means of its (a) Iodine number (b) Octane number (c) Saponification number (d) Melting point

Description : The degree of unsaturation of a fat can be determined by means of its (a) Iodine number (b) Octane number (c) Saponification number (d) Melting point

Last Answer : Iodine number

Saponification number of an oil or fat (A) Gives an idea about its molecular weight (B) Is inversely proportional to its molecular weight (C) Detects its adulteration (D) All (A), (B) & (C)

Description : Saponification number of an oil or fat (A) Gives an idea about its molecular weight (B) Is inversely proportional to its molecular weight (C) Detects its adulteration (D) All (A), (B) & (C)

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

Saponification value/number of an oil or fat is a measure of its (A) Fatty acid content (B) Degree of unsaturation of the fatty acids present in it (C) Average molecular weight (D) Insoluble fatty acid content

Description : Saponification value/number of an oil or fat is a measure of its (A) Fatty acid content (B) Degree of unsaturation of the fatty acids present in it (C) Average molecular weight (D) Insoluble fatty acid content

Last Answer : (C) Average molecular weight

Which of the following statements about nucleic acid is most correct? (A) Both pentose nucleic acid and deoxypentose nucleic acid contain the same pyrimidines (B) Both pentose nucleic acid and deoxypentose nucleic acid and deoxypentose nucleic acid Contain the same purines (C) RNA contains cytosine and thymine (D) DNA and RNA are hydrolysed by weak alkali

Description : Which of the following statements about nucleic acid is most correct? (A) Both pentose nucleic acid and deoxypentose nucleic acid contain the same pyrimidines (B) Both pentose nucleic acid and deoxypentose ... (C) RNA contains cytosine and thymine (D) DNA and RNA are hydrolysed by weak alkali

Last Answer : Answer : B

Reaction of an alcohol with organic acid is called the __________ reaction. (A) Saponification (B) Esterification (C) Neutralisation (D) Acidification

Description : Reaction of an alcohol with organic acid is called the __________ reaction. (A) Saponification (B) Esterification (C) Neutralisation (D) Acidification

Last Answer : (B) Esterification

4. The difference between saponification value and acid value is (A) Called ester value (B) Always negative (C) Constant for all fatty oils (D) None of these

Description : 4. The difference between saponification value and acid value is (A) Called ester value (B) Always negative (C) Constant for all fatty oils (D) None of these

Last Answer : (A) Called ester value

Mention the essential material (chemicals) to prepare soap in the laboratory. Describe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction. -Science

Description : Mention the essential material (chemicals) to prepare soap in the laboratory. Describe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction. -Science

Last Answer : Raw Materials Required For preparation of soap in laboratory are :Vegetable oilSodium HydroxideCommom salt Test to determine the nature of reaction mixture: When a red litmus paper is dipped in the ... colour to blue. Hence, the reaction mixture of the saponification reaction is basic in nature.

Explain any five of the following terms (in not more than four lines each): (i) Osmosis Glycolysis (ii) Phototaxis (iii) Transpiration (iv) Saponification (v) Emulsion

Description : Explain any five of the following terms (in not more than four lines each): (i) Osmosis Glycolysis (ii) Phototaxis (iii) Transpiration (iv) Saponification (v) Emulsion

Last Answer : (i) Osmosis: osmosis, in botany and chemistry, the flow of one constituent of a solution through a membrane while the other constituents are blocked and unable to pass through the (selecyively permeable membrane ... in a second liquid with which the first will not mix: an emulsion of oil in vinegar

Why is the knowledge of saponification value of oil important?

Description : Why is the knowledge of saponification value of oil important?

Last Answer : Saponification value helps the manufacturer of soap to prepare soap which does not contain excess of potassium hydroxide.

What is meant by saponification value?

Description : What is meant by saponification value?

Last Answer : Saponification value can be defined as the amount of potassium hydroxide in ‘mg’ (milligrams) required to neutralize the fatty acid present in one gram of oil or fat.

Explain the steps involved in saponification.

Description : Explain the steps involved in saponification.

Last Answer : Saponification is the reaction that takes place between oil and sodium hydroxide during the manufacture of soap. The steps involved are: 1) Hydrolysis of fats or oil into carboxylic acid and glycerol. 2) Neutralization of the fatty acid by sodium hydroxide.

What is meant by saponification?

Description : What is meant by saponification?

Last Answer : The process of neutralizing the fatty acids present in oils or fats by adding sodium or potassium hydroxide is called saponification.

Saponification of a fat (a) always results in the formation of insoluble soaps (b) produces glycerol and soap (c) is used in the production of detergents (d) is used in the production of lactic acid

Description : Saponification of a fat (a) always results in the formation of insoluble soaps (b) produces glycerol and soap (c) is used in the production of detergents (d) is used in the production of lactic acid

Last Answer : produces glycerol and soap

Saponification is the process that makes what common product

Description : Saponification is the process that makes what common product

Last Answer : Soap

Explain following: i) Saponification ii) Emulsification.

Description : Explain following: i) Saponification ii) Emulsification.

Last Answer : i) Saponification:- It is the number of milligrams of KOH required to saponify 1 gm of oil.  A good lubricant should have moderate saponification value.  ii) Emulsification:- Certain oils have the ... in the refined form because in that case, the chances, of emulsion formation would be minimum. 

Predominant form of storage: (A) Carbohydrates (B) Fats (C) Lipids (D) Both (B) and (C)

Description : Predominant form of storage: (A) Carbohydrates (B) Fats (C) Lipids (D) Both (B) and (C)

Last Answer : Answer : D

Esters of fatty acids with higher alcohols other than glycerol are said to be (A) Waxes (B) Fats (C) Both (A) and (B) (D) None of these

Description : Esters of fatty acids with higher alcohols other than glycerol are said to be (A) Waxes (B) Fats (C) Both (A) and (B) (D) None of these

Last Answer : Answer : A

Propionyl CoA is formed on oxidation of (A) Monounsaturated fatty acids (B) Polyunsaturated fatty acids (C) Fatty acids with odd number of carbon atoms (D) None of these FATS AND FATTY ACID METABOLISM 83

Description : Propionyl CoA is formed on oxidation of (A) Monounsaturated fatty acids (B) Polyunsaturated fatty acids (C) Fatty acids with odd number of carbon atoms (D) None of these FATS AND FATTY ACID METABOLISM 83

Last Answer : Answer : C

DNA is (A) Usually present in tissues as a nucleo protein and cannot be separated from its protein component (B) A long chain polymer in which the internucleotide linkages are of the diester type between C-3’ and C-5’ (C) Different from RNA since in the latter the internucleotide linkages are between C-2’ and C-5’ (D) Hydrolyzed by weal alkali (pH9 to 100°C)

Description : DNA is (A) Usually present in tissues as a nucleo protein and cannot be separated from its protein component (B) A long chain polymer in which the internucleotide linkages are of the diester type between C-3 ... linkages are between C-2' and C-5' (D) Hydrolyzed by weal alkali (pH9 to 100°C)

Last Answer : Answer : B

From a DNA-RNA hybrid, DNA can be obtained by addition of (A) DNA B protein and ATP (B) Helicase and ATP (C) DNA topoisomerase I (D) Alkali

Description : From a DNA-RNA hybrid, DNA can be obtained by addition of (A) DNA B protein and ATP (B) Helicase and ATP (C) DNA topoisomerase I (D) Alkali

Last Answer : Answer : D

Hypercalcaemia can occur in all the following except (A) Hyperparathyroidism (B) Hypervitaminosis D (C) Milk alkali syndrome (D) Nephrotic syndrome

Description : Hypercalcaemia can occur in all the following except (A) Hyperparathyroidism (B) Hypervitaminosis D (C) Milk alkali syndrome (D) Nephrotic syndrome

Last Answer : Answer : D

All the following statements about ketone bodies are true except (A) Their synthesis increases in diabetes mellitus (B) They are synthesized in mitchondria (C) They can deplete the alkali reserve (D) They can be oxidized in the liver

Description : All the following statements about ketone bodies are true except (A) Their synthesis increases in diabetes mellitus (B) They are synthesized in mitchondria (C) They can deplete the alkali reserve (D) They can be oxidized in the liver

Last Answer : Answer : D

In most mammals, except primates, uric acid is metabolized by (A) Oxidation to allantoin (B) Reduction to NH3 (C) Hydrolysis to allantoin (D) Hydrolysis to NH3

Description : In most mammals, except primates, uric acid is metabolized by (A) Oxidation to allantoin (B) Reduction to NH3 (C) Hydrolysis to allantoin (D) Hydrolysis to NH3

Last Answer : Answer : A

Acid hydrolysis of ribonucleic acid would yield the following major products: (A) d- deoxyribose, cytosine, adenine (B) d-ribose, thymine, Guanine (C) d-ribose, cytosine, uracil, thymine (D) d-ribose, uracil, adenine, guanine, cytosine

Description : Acid hydrolysis of ribonucleic acid would yield the following major products: (A) d- deoxyribose, cytosine, adenine (B) d-ribose, thymine, Guanine (C) d-ribose, cytosine, uracil, thymine (D) d-ribose, uracil, adenine, guanine, cytosine

Last Answer : Answer : D

In mammals other than higher primates uric acid is converted by (A) Oxidation to allantoin (B) Reduction to ammonia (C) Hydrolysis to ammonia (D) Hydrolysis to allantoin

Description : In mammals other than higher primates uric acid is converted by (A) Oxidation to allantoin (B) Reduction to ammonia (C) Hydrolysis to ammonia (D) Hydrolysis to allantoin

Last Answer : Answer : A

Standard free energy (∆G°) of hydrolysis of creatine phosphate is (A) -–51.4 KJ/mol (B) –43.1 KJ/mol (C) –30.5 KJ/mol (D) –15.9 KJ/mol

Description : Standard free energy (∆G°) of hydrolysis of creatine phosphate is (A) -–51.4 KJ/mol (B) –43.1 KJ/mol (C) –30.5 KJ/mol (D) –15.9 KJ/mol

Last Answer : Answer : B

Standard free energy (∆G°) of hydrolysis of phosphoenolpyruvate is (A) –61.9 KJ/mol (B) –43.1 KJ/mol (C) –14.2 KJ/mol (D) –9.2 KJ/mol

Description : Standard free energy (∆G°) of hydrolysis of phosphoenolpyruvate is (A) –61.9 KJ/mol (B) –43.1 KJ/mol (C) –14.2 KJ/mol (D) –9.2 KJ/mol

Last Answer : Answer : A

Standard free energy (∆G°) of hydrolysis of ADP to AMP + Pi is (A) –43.3 KJ/mol (B) –30.5 KJ/mol (C) –27.6 KJ/mol (D) –15.9 KJ/mol

Description : Standard free energy (∆G°) of hydrolysis of ADP to AMP + Pi is (A) –43.3 KJ/mol (B) –30.5 KJ/mol (C) –27.6 KJ/mol (D) –15.9 KJ/mol

Last Answer : Answer : C

Standard free energy (∆G°) of hydrolysis of ATP to ADP + Pi is (A) –49.3 KJ/mol (B) –4.93 KJ/mol (C) –30.5 KJ/mol (D) –20.9 KJ/mol

Description : Standard free energy (∆G°) of hydrolysis of ATP to ADP + Pi is (A) –49.3 KJ/mol (B) –4.93 KJ/mol (C) –30.5 KJ/mol (D) –20.9 KJ/mol

Last Answer : Answer : C

Enzyme catalyzed hydrolysis of proteins produces amino acid of the form (A) D (B) DL (C) L (D) Racemic

Description : Enzyme catalyzed hydrolysis of proteins produces amino acid of the form (A) D (B) DL (C) L (D) Racemic

Last Answer : Answer : C

Diastase can be used for the hydrolysis can be used for the hydrolysis of (A) Sucrose (B) Starch (C) Cellulose (D) Maltose

Description : Diastase can be used for the hydrolysis can be used for the hydrolysis of (A) Sucrose (B) Starch (C) Cellulose (D) Maltose

Last Answer : Answer : B