How are fats and oils formed?

How are fats and oils formed?
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1 Answer

Answer :

When fatty acids react with glycerol, fats and oils are formed.

Fatty acid + Glycerol

Esterification

Fat/oil + Water
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Related questions

Consider the following statements: 1. Mercury metal exists as a liquid at room temperature. 2. The property of metals by which they can be beaten into thin sheets is called malleability 3. Neutral fats such as butter and vegetable oils are mostly triglycerides. 4. The size of an atom is of the order of 10 - 15 m. The correct statements are: (a) 1, 2 and 4 only (b) 1, 3 and 4 only (c) 2, 3 and 4 only (d) 1, 2 and 3 only

Description : Consider the following statements: 1. Mercury metal exists as a liquid at room temperature. 2. The property of metals by which they can be beaten into thin sheets is called malleability 3. Neutral fats such as butter and vegetable oils ... b) 1, 3 and 4 only (c) 2, 3 and 4 only (d) 1, 2 and 3 only

Last Answer : Ans:(d)

Oils and fats are obtained from (a) Animal sources (b) Vegetable sources (c) Synthesis (d) Both animal and vegetable sources

Description : Oils and fats are obtained from (a) Animal sources (b) Vegetable sources (c) Synthesis (d) Both animal and vegetable sources

Last Answer : Ans:(d)

Oils and fats are (a) Glyceryl esters of higher fatty acids (b) Acetyl esters of higher fatty acids (c) Ethyl esters of fatty acids (d) Methyl esters of fatty acids

Description : Oils and fats are (a) Glyceryl esters of higher fatty acids (b) Acetyl esters of higher fatty acids (c) Ethyl esters of fatty acids (d) Methyl esters of fatty acids

Last Answer : Ans:(a)

The process of neutralizing the fatty acids present in the oils or fats by adding sodium

Description : The process of neutralizing the fatty acids present in the oils or fats by adding sodium

Last Answer : hydroxide is called saponification.

Mention the importance of fats and oils?

Description : Mention the importance of fats and oils?

Last Answer : a) Fats and oils are sources of food in which vitamin A, D, E & K are soluble. b) It is also a source of light for tribal people. c) Eskimos use animal fat as a source of light in their igloos. d) It is also used as a source of heat.

Mention the differences between fats and oils.

Description : Mention the differences between fats and oils.

Last Answer : Fats Fats are mostly saturated Oils Oils are mostly unsaturated They are solids at room temperature They are liquids at room temperature They are chemically inactive They are chemically reactive They ... slowly It is easy to transport They are digested fast It is difficult to transport

What is the indicator for fats oils and waxes?

Description : What is the indicator for fats oils and waxes?

Last Answer : Need answer

What compound make up fats and oils?

Description : What compound make up fats and oils?

Last Answer : Need answer

Which one of the following forms the base of vegetable fibres? (1) Cellulose (2) Proteins (3) Fats (4) Oils

Description : Which one of the following forms the base of vegetable fibres? (1) Cellulose (2) Proteins (3) Fats (4) Oils

Last Answer : (1) Cellulose Explanation: The principal chemical component of vegetable fibers is cellulose, with varying amounts of lignin and hemicelluloses also usually present; thus, the fibers are also ... bagasse, and banana. Vegetable fibers are usually stiffer but less tough than synthetic fibers.

Drying oils contain a fairly large proportion of – (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Description : Drying oils contain a fairly large proportion of – (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Last Answer : (4) unsaturated fatty acids Explanation: They contain a high percentage of "polyunsaturates" (polyunsaturated fatty acids). Most drying oils owe their drying properties to the presence of a large percentage of linolenic acid (which derives its name from "linseed"), which is highly unsaturated.

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.

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.

Chemically fats and oils are: (1) Triesters (2) Amines (3) Aldehydes (4) Ketons

Description : Chemically fats and oils are: (1) Triesters (2) Amines (3) Aldehydes (4) Ketons

Last Answer : (1) Triesters Explanation: Fats and oils are called triglycerides (or triacylcylgerols) because they are esters composed of three fatty acid units joined to glycerol, a trihydroxy alcohol. Fats and oils are composed of molecules known as triglycerides, which are esters.

Which gas is used for converting vegetable oils into saturated fats? (1) H2 (2) O2 (3) Cl2 (4) SO2

Description : Which gas is used for converting vegetable oils into saturated fats? (1) H2 (2) O2 (3) Cl2 (4) SO2

Last Answer : (1) H2 Explanation: Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. ... oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).

Fats and oils:

Description : Fats and oils:

Last Answer : Fats are soft and greasy at ordinary temperatures, whereas fixed oils—as distinct from essential oils and petroleum—are liquid.

Write a note on fats and oils?

Description : Write a note on fats and oils? 

Last Answer : i) They are composed of carbon, hydrogen and fats. ii) A fat molecule has two parts glycerol and fatty acids. iii) The fatty acids are of two types: - a. Unsaturated fatty acids are ... double energy as compared to carbohydrates and proteins. vi) One gram fats release 9.1 Kilo Cal energy. 

Which of the following statements is not true about triacylglycerols? (a) When solids and semisolids at room temperature, they are called fats. (b) When liquids at room temperature, they are called oils. (c) When hydrolyzed, they produce glycerol and carboxylate salts. (d) Triacylglycerols with low melting points are composed of saturated fatty acids, causing them to be liquids at room temperature

Description : Which of the following statements is not true about triacylglycerols? (a) When solids and semisolids at room temperature, they are called fats. (b) When liquids at room temperature, they are ... low melting points are composed of saturated fatty acids, causing them to be liquids at room temperature

Last Answer : Triacylglycerols with low melting points are composed of saturated fatty acids, causing them to be liquids at room temperature

Which of the following compounds will not be classified as lipids? (a) Fats (b) Waxes (c) Soaps (d) Oils

Description : Which of the following compounds will not be classified as lipids? (a) Fats (b) Waxes (c) Soaps (d) Oils

Last Answer : Waxes

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

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

Fats and oils are (a) monoesters of glycerol (b) diesters of glycerol (c) triesters of glycerol (d) diesters of glycol

Description : Fats and oils are (a) monoesters of glycerol (b) diesters of glycerol (c) triesters of glycerol (d) diesters of glycol

Last Answer : triesters of glycerol

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

The basic difference between vegetable oils and fats is in their (A) Density (B) Chemical properties (C) Physical state (D) Composition

Description : The basic difference between vegetable oils and fats is in their (A) Density (B) Chemical properties (C) Physical state (D) Composition

Last Answer : (C) Physical state

Pick out the wrong statement.(A) Pasteurisation of milk involves moderate heating followed by cooling (B) Bakeries and breweries make use of yeasts (C) Enzyme is a complex nitrogenous compound (D) Oils and fats are alkaloids

Description : Pick out the wrong statement. (A) Pasteurisation of milk involves moderate heating followed by cooling (B) Bakeries and breweries make use of yeasts (C) Enzyme is a complex nitrogenous compound (D) Oils and fats are alkaloids

Last Answer : (D) Oils and fats are alkaloids

Fats as compared to oils have (A) More unsaturated glycerides of fatty acids (B) Less unsaturated glycerides of fatty acids (C) Much higher reactivity to oxygen (D) Lower melting point

Description : Fats as compared to oils have (A) More unsaturated glycerides of fatty acids (B) Less unsaturated glycerides of fatty acids (C) Much higher reactivity to oxygen (D) Lower melting point

Last Answer : (B) Less unsaturated glycerides of fatty acids

Vegetable oils and fats basically differ in their (A) Density ranges (B) Physical state (C) Chemical composition (D) Chemical properties

Description : Vegetable oils and fats basically differ in their (A) Density ranges (B) Physical state (C) Chemical composition (D) Chemical properties

Last Answer : (B) Physical state

Fats and oils contain ____ times more energy than proteins and carbohydrates. a. 2.25 c. 1.5 b. 2 d. 3

Description : Fats and oils contain ____ times more energy than proteins and carbohydrates. a. 2.25 c. 1.5 b. 2 d. 3

Last Answer : a. 2.25

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

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

Last Answer : ANSWER: SOAP

One of the following is NOT a lipid. Is it: w) fats and oils x) starches y) steroids z) waxes

Description : One of the following is NOT a lipid. Is it: w) fats and oils x) starches y) steroids z) waxes

Last Answer : ANSWER: X -- STARCHES

Neutral fats, oils and waxes may be classified as: a) lipids b) carbohydrates c) proteins d) none of the above

Description : Neutral fats, oils and waxes may be classified as: a) lipids b) carbohydrates c) proteins d) none of the above

Last Answer : ANSWER: A -- LIPIDS

Which one of the following forms the base of vegetable fibres? (1) Cellulose (2) Proteins (3) Fats (4) Oils

Description : Which one of the following forms the base of vegetable fibres? (1) Cellulose (2) Proteins (3) Fats (4) Oils

Last Answer : Cellulose

Drying oils contain a fairly large proportion of (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Description : Drying oils contain a fairly large proportion of (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Last Answer : unsaturated fatty acids

Which gas is used for converting vegetable oils into saturated fats ? (1) H2 (2) O2 (3) Cl2 (4) SO2

Description : Which gas is used for converting vegetable oils into saturated fats ? (1) H2 (2) O2 (3) Cl2 (4) SO2

Last Answer : H2

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

The metal that is used as a catalyst in the hydrogenation of oils is (a) Ni (b) Pb (c) Cu (d) Pt

Description : The metal that is used as a catalyst in the hydrogenation of oils is (a) Ni (b) Pb (c) Cu (d) Pt

Last Answer : Ans:(a)

A fractionating column is a glass apparatus used to (a) Separate magnetic solids from nonmagnetic solids (b) Separate a mixture in water (c) Separate two or more liquids (d) Extract oils from vegetable matter

Description : A fractionating column is a glass apparatus used to (a) Separate magnetic solids from nonmagnetic solids (b) Separate a mixture in water (c) Separate two or more liquids (d) Extract oils from vegetable matter

Last Answer : Ans:(c)

Exposure to sunshine and diet rich in fish liver oils, oatmeal and sweet potatoes will not cause the deficiency disease 1. Osteomalacia 2. Osteoporosis and frequent bone fractures 3. Rickets 4. Fatty liver (a) 1, 2 (b) 1, 2, 3 (c) 1, 3 (d) 1, 2, 3, 4

Description : Exposure to sunshine and diet rich in fish liver oils, oatmeal and sweet potatoes will not cause the deficiency disease 1. Osteomalacia 2. Osteoporosis and frequent bone fractures 3. Rickets 4. Fatty liver (a) 1, 2 (b) 1, 2, 3 (c) 1, 3 (d) 1, 2, 3, 4

Last Answer : Ans:(b)

The metal that is used as a catalyst in the hydrogenation of oils is?

Description : The metal that is used as a catalyst in the hydrogenation of oils is?

Last Answer : Ni

The process in which oils undergo oxidation and produce a foul smell is called

Description : The process in which oils undergo oxidation and produce a foul smell is called

Last Answer : rancidity.

Oils are unsaturated and

Description : Oils are unsaturated and

Last Answer : liquids at room temperature.

Give reason: Hydrocarbon oils are not oils.

Description : Give reason: Hydrocarbon oils are not oils.

Last Answer : As they do not contain fatty acids.

Give reason: Hydrogenated Oils are often used in frying and pastries.

Description : Give reason: Hydrogenated Oils are often used in frying and pastries.

Last Answer : Hydrogenated oils have a higher melting point. Hence it is used for frying and pastries.

What is meant by hydrogenation of oils?

Description : What is meant by hydrogenation of oils?

Last Answer : The process of converting liquid oils into solids saturated fats by passing hydrogen gas through them is called hydrogenation of oils. Finely divided nickel is used as catalyst during the process. Ex: Vanaspathi

What is meant by rancidity of oils?

Description : What is meant by rancidity of oils?

Last Answer : Rancidity is the process which causes a substance to become rancid, that is, having unpleasant smell or taste.

Oils have short shelf life.

Description : Oils have short shelf life.

Last Answer : Unsaturated oils have short shelf life because they undergo oxidation in air and produce a foul smell.

a) Oils are easy to digest.

Description : a) Oils are easy to digest.

Last Answer : Unsaturated oils are easy to digest because they are chemically reactive.

Which acid is contained in vegetable oils?

Description : Which acid is contained in vegetable oils?

Last Answer : Stearic acid

Name two vegetable oils which are used as medicine:?

Description : Name two vegetable oils which are used  as medicine:?

Last Answer : Caster oil; Mustard oil

Will borax dissolve in oils?

Description : Will borax dissolve in oils?

Last Answer : No, I don’t think so, since it is a sodium (salt) compound.

Should "essential oil" makers not make their oils homeopathic, to really crank up their effectiveness?

Description : Should "essential oil" makers not make their oils homeopathic, to really crank up their effectiveness?

Last Answer : At least essential oils have a use as air freshener and mood lifter. Some may be marginally effective as insect repellent. I'm guessing to be a true bullshit homeopathic dilution it has to ... auras. *Only true for unrefined, organic snake oil from snakes that have been fed undomesticated mice.