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) oxidation (2) hydrogenation (3) distillation (4) crystalisation
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) 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 : Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process : (1) Hydrolysis (2)Oxidation (3) Hydrogenation (4) Ozonolysis
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 : 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 : 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 : 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 : 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 : Vegetable oil is made into margarine through: w) halogenation x) partial hydrogenation y) methylation z) oxidation
Last Answer : ANSWER: X -- PARTIAL HYDROGENATION
Description : Camphor can easily be purified by the process of (a) Sublimation (b) Distillation (c) Crystallisation (d) Sedimentation
Last Answer : Ans:(a)
Description : An oil is converted into fat by its (A) Hydrogenation (B) Hydrolysis (C) Hydrocracking (D) Hydration
Last Answer : (A) Hydrogenation
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 : Which of the following pair of isomers can not be separated by fractional crystallisation or fractional distillation:
Last Answer : Which of the following pair of isomers can not be separated by fractional crystallisation or fractional ... )-lactic acid and (-) -lactic acid
Description : ADDUCTS' and 'CLATHRATES' are used in case of (A) Extractive distillation (B) Crystallisation (C) Absorption (D) None of these
Last Answer : (B) Crystallisation
Description : Duhring’s rule is important in solving problems on (A) Distillation (B) Crystallisation (C) Evaporation (D) Humidification
Last Answer : (C) Evaporation
Description : Concentration of hydrogen peroxide is done by (A) Crystallisation (B) Vacuum crystallisation (C) Atmospheric distillation (D) Dehydration
Last Answer : (B) Vacuum crystallisation
Description : Impure camphor is purified by (1) sublimation (2) fractional crystallisation (3) fractional distillation (4) steam distillation
Last Answer : sublimation
Description : Consider the following processes: 1. Evaporation 2. Fractional distillation 3. Distillation 4. Filtration The process(es) involved in the refining of crude oil is/ are: (a) 3 only (b) 2 and 3 (c) 3 only (d) 1 only
Last Answer : Ans:(b)
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 : 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)
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
Description : Liquid oils can be converted to solid fats by (a) Hydrogenation (b) Saponification (c) Hydrolysis (d) Oxidation of double bonds
Description : When petroleum is refined it is subject to a number of processes including cracking. During the cracking process w) lighter hydrocarbons are combined to form heavier ones x) heavy hydrocarbons ... lighter hydrocarbons are separated by distillation z) oxygen is used to burn the heavier hydrocarbons
Last Answer : ANSWER: X -- HEAVY HYDROCARBONS ARE BROKEN UP INTO LIGHTER ONES
Description : Describe the following unit processes: (i) Pyrolysis (ii) Hydration (iii) Hydrogenation.
Last Answer : i)Pyrolysis: The decomposition of a compound by heat is called pyrolysis. Large alkane molecules are broken down to give lower molecular weight alkanes, alkenes and hydrogen. Eg: When ethane is heated to 500 ... Chemical Reaction for hydrogenation: CH2= CH2 + H2 → CH3-CH3 C6H6 + 3H2→C6H12
Description : Explain following unit processes with suitable example. (i) Sulphonation (ii) Hydrogenation (iii) Esterification
Last Answer : (i) Sulfonation reactions : It is the reaction with sulfuric acid to introduce sulfonic (SO3H) group into a compound. (ii) Hydrogenation: Hydrogenation may be defined as the chemical ... of ethyl acetate. Sulphuric acid and hydrochloric acids are the catalysts used for esterification.
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 : The gas used in the manufacture of Vanaspati Ghee from Vanaspati Oil is
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)
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 : In which of the following pair(s) the minerals are converted in to metals by self-reduction process?
Last Answer : In which of the following pair(s) the minerals are converted in to metals by self-reduction process? A. `Cu_(2)S, ... `PbS, ZnS` D. `Ag_(2)S, Cu_(2)S`
Description : Main source of lead is galena `(PbS)`. It is converted to Pb by `:` Self`-` reduction process is `:`
Last Answer : Main source of lead is galena `(PbS)`. It is converted to Pb by `:` Self`-` reduction process is `:` A. A B. B C. both D. none
Description : Biluveridin is converted to bilirubin by the process of (A) Oxidation (B) Reduction (C) Conjugation (D) Decarboxylation
Last Answer : Answer : B
Description : Common salt is obtained from sea water by the process of (a) sublimation (b) evaporation (c) crystallisation (d) filtration
Description : Crystallisation of solids from a homogeneous solution is a/an __________ process. (A) Exothermic (B) Mildly endothermic (C) Highly endothermic (D) None of these
Last Answer : (A) Exothermic
Description : Solvay process as compared to dual process (i.e. modified Solvay process). (A) Can use low grade brine (B) Has less corrosion problems (C) Involves higher investment in NH3 recovery units than that for crystallisation units for NH4Cl (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)