Description : Which of the following is an unsaturated fatty acid? (A) Lauric acid (B) Palmitic acid (C) Stearic acid (D) Oleic acid
Last Answer : (D) Oleic acid
Description : __________ acid is an unsaturated fatty acid. (A) Palmitic (B) Oleic (C) Stearic (D) Oxalic
Last Answer : (B) Oleic
Description : A fatty acid which is not synthesized in human body and has to be supplied in the diet is (A) Palmitic acid (B) Oleic acid (C) Linoleic acid (D) Stearic acid
Last Answer : Answer : C
Description : A fatty acid not synthesized in man is (A) Oleic (B) Palmitic (C) Linoleic (D) Stearic
Description : A fatty acid which is not synthesized in human body and has to be supplied in the diet: (A) Palmitic acid (B) Oleic acid (C) Linoleic acid (D) Stearic acid
Description : Which of the following is a hydroxy fatty acid? (A) Oleic acid (B) Ricinoleic acid (C) Caproic acid (D) Stearic acid
Last Answer : Answer : B
Description : Which of the following is not an unsaturated fatty acid? (A) Oleic acid (B) Stearic acid (C) Linaoleic acid (D) Palmitic acid
Description : Palmitic, oleic or stearic acid ester of cholesterol used in manufacture of cosmetic creams is (A) Elaidic oil (B) Lanoline (C) Spermaceti (D) Chaulmoogric oil FATS AND FATTY ACID METABOLISM 75
Description : In humans, a dietary essential fatty acid is (A) Palmitic acid (B) Stearic acid (C) Oleic acid (D) Linoleic acid
Last Answer : Answer : D
Description : Which is the saturated fatty acid of the following – a) Stearic acid b) Arachidonic acid c) Oleic acid d) Linoleic acid
Last Answer : a) Stearic acid
Description : Soft fats in milk fat are:- a. Lauric & Stearic b. Capric & Lauric c. Oleic & Butyric d. Oleic & Lauric
Last Answer : c. Oleic & Butyric
Description : The basic constituent of vegetable oils is (A) Triglyceride (B) Fatty acids (C) Fatty alcohol (D) Mono esters
Last Answer : (A) Triglyceride
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.
Description : __________ acid is the main constituent of cotton seed oil. (A) Acetic (B) Linoleic (C) Palmitic (D) Oleic
Last Answer : (B) Linoleic
Description : The importance of phospholipids as constituent of cell membrane is because they possess (A) Fatty acids (B) Both polar and nonpolar groups (C) Glycerol (D) Phosphoric acid
Description : Insulin is oxidized to separate the protein molecule into its constituent polypeptide chains without affecting the other part of the molecule by the use of (A) Performic acid (B) Oxalic acid (C) Citric acid (D) Malic acid
Last Answer : Answer : A
Description : Consider the following statements: 1. Caffeine, a constituent of tea and coffee is a diuretic 2. Citric acid is used in soft drinks. 3. Ascorbic acid is essential for the formation of bones and teeth. 4. Citric Acid is a good ... 2 only (b) 1, 2 and 3 only (c) 3 and 4 only (d) 1, 2, 3 and 4
Last Answer : Ans:(a)
Description : Which acid is contained in vegetable oils?
Last Answer : Stearic acid
Description : The enzyme that catalyse the changing of emulsified oils to fatty acids and glycerol is -
Last Answer : The enzyme that catalyse the changing of emulsified oils to fatty acids and glycerol is - A. Pepsin B. Lipase C. Amylase D. Sucrose
Description : Esters of fatty acids with higher alcohol other than glycerol are called as (A) Oils (B) Polyesters (C) Waxes (D) Terpenoids
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
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
Description : Feedstock for the production of biodiesel is (A) Herbal plants (B) Used vegetable oils (C) LSHS (D) Bagasse
Last Answer : (B) Used vegetable oils
Description : An example of elution is (A) Separation of uranium oxide from its ore by H2SO4 in a Pachuca tank (B) Separation of sugar from sugar beet by hot water (C) Dissolution of tannin out of tree barks by water (D) Recovery of vegetable oils from seeds
Last Answer : (A) Separation of uranium oxide from its ore by H2SO4 in a Pachuca tank
Description : Vegetable oils are hydrogenated in a __________ reactor. (A) Slurry (B) Plug flow (C) Homogeneous catalytic (D) None of these
Last Answer : (A) Slurry
Description : Flash point of most vegetable oils is about __________ °C. (A) 50 (B) 100 (C) 200 (D) 300
Last Answer : (C) 200
Description : Hydrogenation of vegetable oils is a/an __________ reaction. (A) Endothermic (B) Autocatalytic (C) Exothermic (D) Homogenous
Last Answer : (C) Exothermic
Description : Pick out the correct statement. (A) A fat is converted into oil by its hydrogenation (B) There is no difference between a fat and an oil so far as its physical properties are ... Vegetable oils are classified as drying, non-drying and semi drying oils depending upon their fatty acids content
Last Answer : (C) All vegetable oils except coconut oil, contains fatty acids having more than sixteen carbon atoms
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
Description : Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil. (A) Drying (B) Semi-drying (C) Non-drying (D) None of these
Last Answer : (C) Non-drying
Description : Hydrogenation of edible vegetable oils (A) Is an exothermic reaction (B) Increases their melting point (C) Is done in presence of nickel catalyst (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Commercial production of Vanaspati is done by __________ of edible vegetable oils. (A) Hydrogenation (B) Oxidation (C) Hydrolysis (D) Hydrocracking
Last Answer : (A) Hydrogenation
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
Description : What vegetable oils are considered to be cholesterol lowering?
Last Answer : Most vegetable oils are made up of 100% fat and are not good for lowering cholesterol. Some healthy alternatives include sesame oil, sunflower oil, safflower oil, and extra virgin olive oil for cooking.
Description : The Iodine number of essential fatty acids of vegetable oils: (A) High (B) Very high (C) Very low (D) Low
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)
Description : Oils and fats are obtained from (a) Animal sources (b) Vegetable sources (c) Synthesis (d) Both animal and vegetable sources
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)
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.
Description : Vegetable oils are converted into solid fat (ghee) by - (1) Hydrolysis (2) Addition of agar (3) Oxidation using air and a catalyst (4) Hydrogenation
Last Answer : (4) Hydrogenation 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 ... oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).
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).
Description : Which one of the following vegetable oils is used in the manufacture of paints? (1) Palm oil (2) Sunflower oil (3) Linseed oil (4) Cottonseed oil
Last Answer : (4) Cottonseed oil Explanation: Linseed oil and castor oils are used mainly as drying agents in paints and varnishes. Linseed oil is generally used in the manufacture of oil paints, drying oil finish ... , as a pigment binder in oil paints, as a plasticizer and in the manufacture of linoleum.
Description : Which of the following vegetable oils does not contain essential fatty acids? (1) Sunflower oil (2) Mustard oil (3) Coconut oil (4) Gmundnut oil
Last Answer : (1) Sunflower oil Explanation: Fatty Acids are aliphatic carboxylic acid with varying hydrocarbon lengths at one end of the chain joined to terminal carboxyl (-COOH) group at the other end.
Description : Whether cholesterol is present in vegetable oils?
Last Answer : No.
Description : Name two vegetable oils which are used as medicine:?
Last Answer : Caster oil; Mustard oil
Description : High cholesterol patients are advised to use (a) ghee, butter and oils (b) groundnut oil, margarine and vegetable oils (c) fatty oil and butter (d) cheese, dalda and ghee.
Last Answer : (b) groundnut oil, margarine and vegetable oils
Description : Partial hydrogenation of vegetable oils in the presence of Ni catalyst at 200°C gives (a) Vanaspati ghee (b) Margarine (c) Both of these (d) None of these
Last Answer : Vanaspati ghee
Description : Glycerine and what other substance are made by heatin animal fats or vegetable oils with sodium hydroxide?
Last Answer : ANSWER: SOAP
Last Answer : Cellulose
Description : Vegetable oils are converted into solid fat (ghee) by (1) Hydrolysis (2) Addition of agar (3) Oxidation using air and a catalyst (4) Hydrogenation
Last Answer : Hydrogenation