Description : Cooking oil can be converted into vegetable ghee by the process of – (1) oxidation (2) hydrogenation (3) distillation (4) crystalisation
Last Answer : (2) hydrogenation Explanation: An example of an alkene addition reaction is a process called hydrogenation. In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane.
Description : Cooking oil can be converted into vegetable ghee by the process of 1. hydrogenation 2. distillation 3. crystallisation 4. reduction The correct processes are: (a) 1 and 4 (b) 2 and 4 (c) 1 and 3 (d) 3 and 4
Last Answer : Ans:(a)
Description : Cooking oil can be converted into vegetables ghee by the process of – (1) Oxidation (2) Hydrogenation (3) Distillation (4) Crystallization
Last Answer : (2) Hydrogenation Explanation: Hydrogenation is a chemical reaction - widely used in the processing of cooking oils and fats - that turns unsaturated fatty acids into saturated ones.
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 : 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
Description : Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process : (1) Hydrolysis (2)Oxidation (3) Hydrogenation (4) Ozonolysis
Description : Preparation of `Dalda or Vanaspati' ghee from vegetable oil utilizes the following process : (1) Hydrolysis (2) Qxidation (3) Hydrogenation (4) Ozonolysis
Last Answer : (3) Hydrogenation Explanation: The largest. scale application of hydrogenation is for the processing of vegetable oils (fats to give margarine and related spreads and shortenings). Typical vegetable oils ... liquid vegetable oils into solid or semi-solid fats, such as those present in margarine.
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 : 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 : Vegetable oil is made into margarine through: w) halogenation x) partial hydrogenation y) methylation z) oxidation
Last Answer : ANSWER: X -- PARTIAL HYDROGENATION
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 : 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 : A healthy person eats the following diet-5 gm raw sugar, 4 gm albumin, 10 gm pure buffalo ghee adultrated with 2 gm vegetable ghee (hydrogenated vegetable oil) and 5 gm lignin. How many calories he is likely to get? (a) 126 (b) 164 (c) 112 (d) 144
Last Answer : (d) 144
Description : Liquid oils can be converted to solid fats by (a) Hydrogenation (b) Saponification (c) Hydrolysis (d) Oxidation of double bonds
Description : An oil is converted into fat by its (A) Hydrogenation (B) Hydrolysis (C) Hydrocracking (D) Hydration
Description : Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its (A) Poor oxidation stability and high gum forming ... at elevated temperature (C) Hydrolysis tendency in presence of water (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : In the Industrial production of vegetable ghee, the process involved is
Last Answer : Reduction
Description : A 'unit process' is exemplified by the (A) Distillation (B) Hydrogenation of oils (C) Absorption (D) Humidification
Last Answer : (B) Hydrogenation of oils
Description : Ammonia synthesis gas is produced from fuel oil by (A) Steam reforming (B) Hydro-cracking (C) Partial oxidation (D) Hydrogenation
Last Answer : (C) Partial oxidation
Description : Hydrogenation of oil/fat does not (A) Improve its resistance to rancid oxidation (B) Raise its melting point (C) Remove double bonds (D) None of these
Last Answer : (D) None of these
Description : Hydrogenation of oil does not (A) Remove double bonds (B) Raise its melting point (C) Improve its resistance to oxidation (D) None of these
Description : Rancidity of the fatty oil can be reduced by its (A) Decoloration (B) Hydrogenation (C) Oxidation (D) Purification
Last Answer : (B) Hydrogenation
Description : Liquid hydrocarbons are converted to low molecular weight gaseous hydrocarbons by a process known as (a) hydrogenation (b) reforming (c) cracking (d) reduction
Last Answer : Ans:(c)
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
Description : Which gas is used in the manufacture of vegetable ghee? -General Knowledge
Last Answer : answer:
Description : Gas used in the production of vegetable ghee is
Last Answer : Hydrogen
Description : Sulphuric acid is used as a catalyst in the (A) Hydrogenation of oils (B) Gas phase oxidation of SO2 in chamber process (C) Alkylation of hydrocarbons (D) None of these
Last Answer : (C) Alkylation of hydrocarbons
Description : Which of the following statements are false about benzene? (a) It is a planar molecule with bond angles 120°. (b) It is immiscible with water forming the lower layer. (c) It can be ... Ni catalyst. (d) It reacts with ethyl chloride in the presence of aluminium chloride to form ethylbenzene.
Last Answer : It is immiscible with water forming the lower layer
Description : Have you converted your car's engine to use waste vegetable oil from restaurants?
Last Answer : In the UK you’re still obliged to pay the fuel duty which is most if the price over here. Also I thought if the car had a diseal engine it didn’t need converting to run on vegtable oil?
Description : Hydrogenation of vegetable oils is a/an __________ reaction. (A) Endothermic (B) Autocatalytic (C) Exothermic (D) Homogenous
Last Answer : (C) Exothermic
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)
Description : Which of the following salts do not have the water of crystalisation? (i) Bleaching Powder (ii) Plaster of Paris (iii) washing soda (iv) Baking soda (a) (ii) and (iv) (b) (i) and (iii) (c) (ii) and (iii) (d) (i) and (iv)
Last Answer : (d) (i) and (iv)
Description : Nickel is not used as a catalyst in the (A) Fischer-Tropsch process (B) Shift conversion (C) Hydrogenation of oil (D) Ostwald's process of HNO3 manufacture
Last Answer : (D) Ostwald's process of HNO3 manufacture
Description : Gobar gas is produced by the __________ of cow dung. (A) Fermentation (B) Oxidation (C) Hydrogenation (D) None of these
Last Answer : (A) Fermentation
Description : Ammonia synthesis gas is produced from natural gas by (A) Thermal cracking (B) Steam reforming (C) Partial oxidation (D) Hydrogenation
Last Answer : (B) Steam reforming
Description : The thermal decomposition of alkanes in the absence of air is called : (a) Combustion (b) Oxidation (c) Cracking (d) Hydrogenation
Last Answer : Cracking
Description : The gas used in the manufacture of Vanaspati Ghee from Vanaspati Oil is
Description : The manufacturing of iron from ironore involves the process of - (1) Oxidation (2) Reduction (3) Electrolysis (4) Fractional distillation
Last Answer : (2) Reduction Explanation: Iron is extracted from iron ore in a huge container called a blast furnace. Iron ores such as hematite contain iron oxide. The oxygen must be removed from the iron oxide to leave the iron behind. Reactions in which oxygen is removed are called reduction reactions.
Description : The manufacture of iron from iron ore involves the process of – (1) oxidation (2) reduction (3) fractional distillation (4) electrolysis
Last Answer : (2) reduction Explanation: The manufacture of iron ore involves the process of reduction. Important ores of iron : Haematite, Magnetite.
Description : The manufacturing of iron from ironore involves the process of (1) Oxidation (2) Reduction (3) Electrolysis (4) Fractional distillation
Description : The manufacture of iron from iron ore involves the process of (1) oxidation (2) reduction (3) fractional distillation (4) electrolysis
Last Answer : reduction
Description : Black liquor is converted into white liquor by (A) Evaporation and burning the concentrate followed by causticisation of products (B) Multi-effect evaporation only (C) Selective liquid extraction (D) Extractive distillation
Last Answer : (A) Evaporation and burning the concentrate followed by causticisation of products
Description : The method used for preparing tincture from the mucilaginous and gummy substances from vegetable or animal kingdom is Options: 1) Distillation 2) Sublimation 3) Maceration 4) Crystallisation
Last Answer : Correct Answer: 3) Maceration
Description : Biluveridin is converted to bilirubin by the process of (A) Oxidation (B) Reduction (C) Conjugation (D) Decarboxylation
Last Answer : Answer : B
Description : How does the hydrogenation of olive oil affect its healthiness?
Last Answer : Hydrogenation turns unsaturated fat into saturated fat, which is said to be less healthful. But it is done to make fat that is solid at room temperature, rather than liquid.
Description : Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant. (A) Agitated vessel (B) Sieve tray column (C) Bubble cap column (D) Packed tower
Last Answer : (A) Agitated vessel
Description : Catalyst used in the hydrogenation of oil is (A) Nickel (B) Platinum (C) Iron (D) Alumina
Last Answer : (A) Nickel
Description : Massecuite is a terminology used in the __________ industry. (A) Paint (B) Oil hydrogenation (C) Soap (D) Sugar
Last Answer : (D) Sugar
Description : Nickel is not used as a catalyst in the __________ reaction. (A) Shift conversion (B) Oil hydrogenation (C) Steaming reforming of naphtha (D) Ammonia cracking/dissociation
Last Answer : (A) Shift conversion
Description : Glycerine is a by-product of the __________ industry. (A) Soap (B) Detergent (C) Oil hydrogenation (D) Paint
Last Answer : (A) Soap