Description : Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation. (A) Molecular (B) Extractive (C) Steam (D) Simple
Last Answer : (D) Simple
Description : Crude oil is separated into its components by: w) chemical reaction x) simple distillation y) fractional distillation z) settling
Last Answer : ANSWER: Y -- FRACTIONAL DISTILLATION
Description : A mixture of water and alcohol can be separated by – (1) Filtration (2) Evaporation (3) Decantation (4) Distillation
Last Answer : (4) Distillation Explanation: A mixture of water and alcohol is separated by the process of distillation. At 780C, alcohol starts to vaporize. The vapours are condensed in the condenser and alcohol is collected in the receiver.
Description : Water can be separated from alcohol water mixture by – (1) decantation (2) evaporation (3) distillation (4) sublimation
Last Answer : (3) distillation Explanation: Distillation is a method of separating mixtures based on differences in volatilities of components in a boiling liquid mixture. Distillation is a unit operation, or a ... is distilled to separate its components- notably oxygen, nitrogen, and argon- for industrial use.
Description : A mixture of water and alcohol can be separated by - (1) Filtration (2) Evaporation (3) Distillation (4) Decantation
Last Answer : (3) Distillation Explanation: Simple distillation is a procedure by which two liquids with different boiling points can be separated.
Description : Steam distillation is not recommended to be used, if the (A) Azeotropic mixture is to be separated and the final product is miscible with water (B) Liquids decompose, if ... unstable or has the tendency to react with other components associated with it, at the boiling temperature
Last Answer : (A) Azeotropic mixture is to be separated and the final product is miscible with water
Description : Acetic acid will be most economically separated from a dilute solution of acetic acid in water by (A) Solvent extraction (B) Continuous distillation (C) Evaporation (D) Absorption
Last Answer : (A) Solvent extraction
Description : Why water cannot be separated completely from ethyl alcohol by fractional distillation?
Last Answer : Ethyl alcohol and water (95.4% ethyl alcohol and 4.6% water) form constant boiling mixture (azeotrope) boiling at 351.1 K. Hence, further water cannot be separated completely from ethyl alcohol by fractional distillation.
Description : A mixture of water and alcohol can be separated by (1) Filtration (2) Evaporation (3) Decantation (4) Distillation
Last Answer : Distillation
Description : Water can be separated from alcohol water mixture by (1) decantation (2) evaporation (3) distillation (4) sublimation
Last Answer : distillation
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 : When during fractional distillation hydrocarbons are separated according to their?
Last Answer : Fractional distillation separates substances according to theirboiling point.
Description : Consider the following statements: 1. Carbyne is an allotrope of carbon. 2. Gasoline, used as a fuel in motor vehicles is a mixture of petrol and alcohol. 3. Petroleum is also known as 'liquid gold'. 4. The various components of crude ... (b) 1, 3 and 4 only (c) 1, 2, 3 and 4 (d) 1, 2 and 3 only
Last Answer : Ans:(b)
Description : Iodine can be separated from a mixture of Iodine and Potassium Chloride by - (1) Filtration (2) Sublimation (3) Distillation (4) Sedimentation
Last Answer : (2) Sublimation Explanation: Iodine can be separated from a mixture of Iodine and Potassium Chloride by Sublimation. Sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.
Description : Iodine can be separated from a mixture of Iodine and Potassium Chloride by – (1) sedimentation (2) filtration (3) sublimation (4) distillation
Last Answer : (3) sublimation Explanation: Iodine is well known to sublime (change from solid to gas without becoming liquid in between) when heated. However sodium chloride has a melting point much higher ... by using a sublimation apparatus, with solid iodine collected by condensation on a cold surface.
Description : Waxes present in petroleum products (A) Can be separated out by distillation (B) Are not soluble in them (C) Crystallise out at low temperature (D) Decrease their viscosity
Last Answer : (C) Crystallise out at low temperature
Description : Heat sensitive materials with very high latent heat of vaporisation may be economically separated using (A) Liquid extraction (B) Distillation (C) Evaporation (D) Absorption
Last Answer : (A) Liquid extraction
Description : Two liquids (A)and(B)are separated by fractional distillation, the boiling point of (A) is less than (B).which liquid comes out first in distillate? Explain.
Last Answer : The liquid (a) comes out first in distillate. On boiling the vapours of lower boiling component are formed first.
Description : Fenske equation for determining the minimum number of theoretical stages in distillation column holds good, when the (A) Relative volatility is reasonably constant (B) Mixture (to be separated) ... (to be separated) shows positive deviation from ideality (D) Multi-component distillation is involved
Last Answer : (A) Relative volatility is reasonably constant
Description : In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated. (A) Molecular (B) Azeotropic (C) Extractive
Last Answer : (C) Extractive
Description : A binary mixture of benzene and cyclohexane is separated by (A) Flash vaporisation (B) Extractive distillation (C) Solvent extraction (D) Ordinary distillation
Last Answer : (B) Extractive distillation
Description : Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C. (A) -83 (B) -183 (C) -196 (D) -218
Last Answer : (B) -183
Description : Penicillin is separated from fermented broth by (A) Extraction with amyl or butyl acetate (B) Ternary Azeotropic distillation (C) Evaporator in calandria (D) Extractive distillation
Last Answer : (A) Extraction with amyl or butyl acetate
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 : Iodine can be separated from a mixture of Iodine and Potassium Chloride by (1) sedimentation (2) filtration (3) sublimation (4) distillation
Last Answer : sublimation
Description : Pick out the wrong statement. (A) Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80% (B) Contact process of sulphuric acid manufacture produces pure acid of ... of 20% oleum (D) Contact process of sulphuric acid manufacture uses nickel as the catalyst
Last Answer : (D) Contact process of sulphuric acid manufacture uses nickel as the catalyst
Description : Can simple distillation be done to separate water from aqueous magnesium sulphate?
Last Answer : Yes.Because simple distillation is a separating of a mixturethrough heating.it is only applied to separate volatile liquid fromthe nonvolatile ones.The gas created by the distillation iscollected through condensation to form a liquid again.Thank you'_'
Description : Which instruction are arranged as per the protocols of memory reference format of the input file in a simple ASCII sequence of integers between the range O to 99 separated by spaces without formatted text ... : a. Memory reference instruction b. Memory reference format c. Both d. None of these
Last Answer : a. Memory reference instruction
Description : Curves in the same direction separated by short tangents, are called (A) Simple circular curves (B) Compound curves (C) Transition curves (D) Broken-back curves
Last Answer : Answer: Option D
Description : 11.Enumerate any two differences between simple distillation and fractionational distillation. -Chemistry
Last Answer : Answer Simple Distillation Fractional DistillationIt is used for separation of components of a mixture having sufficient difference in their boiling points.Used to separate a mixture of two or ... be separated by the use of simple distillation.Eg. It is used to separate petroleum products.
Description : Absolute alcohol cannot be obtained by simple fractional distillation because
Last Answer : Absolute alcohol cannot be obtained by simple fractional distillation because A. pure `C_(2)H_ ... oxidation D. it forms azeotropic mixture with water
Description : A liquid with high boiling point decomposes on simple distillation but it can be steam distilled for its purification .Explain how is it possible?
Last Answer : In steam distillation boiling occurs when vapour pressure of organic compound & steam becomes equal to atmospheric pressure. As vapour pressure of water is higher than the organic liquid. ... organic liquid vaporizes at a temperature below its boiling point in steam distillation without decomposing.
Description : Flash distillation is (A) Same as differential distillation (B) Used for multi-component systems like crude refining (C) Same as simple distillation (D) Most useful for handling binary systems
Last Answer : (B) Used for multi-component systems like crude refining
Description : Give application of simple distillation. What is the principle of fractional distillation?
Last Answer : Applications of simple distillation: i. It is used for the preparation of distilled water and water for injection. ii. Preparation of many volatile oils and aromatic water. iii. Purification ... becomes richer with the liquid having the lower boiling point which gets condensed in a condenser.
Description : Differentiate between Evaporation and Distillation and explain the working and application of simple distillation.
Last Answer : Evaporation Distillation: 1. Free escape of vapors from the surface of liquid below its boiling point. Evaporation takes place even at room temperature 1) Process of ... Concentration of liquid and to separate non volatile solid from the volatile liquid such as alcohol and ether.
Description : Give any two applications of simple distillation.Describe method of separation of two immiscible liquids.
Last Answer : Applications of simple distillation(0.5 2) 1) Preparation of distilled water and water for injection. 2)Recovery of alcohol in preparation of dry extracts 3)Many volatile oils and ... proportion The distillate can be collected in Florentine receiver for separation of oil & water.
Description : Write the applications of simple distillation in pharmacy.
Last Answer : i.It is used for the preparation of distilled water and water for injection. ii. Preparation of many volatile oils and aromatic water. iii. Purification of organic solvent. iv. Preparation ... compound like spirit of aromatic spirit of ammonia. vi. To separate volatile and non-volatile solvents
Description : women like to show and shine in 2021: Jackie mack womes rings.som wonderful creatons.thrill in pure stasis.lt is surprising how this jewelry of simple structure has evolved over the centuries.to be a symbol of especial promise?
Last Answer : Jackie mack ouro
Description : Intrinsic Semi-conductor is also known as-----? A. Impure-Conductor B. Pure-Conductor (Answer) C. Simple Conductor D. None of these
Last Answer : B. Pure-Conductor (Answer)
Description : …………… it is the form of the market in which the only seller of a commodity has fully control over the prices (a) Monopoly ; (b) Pure monopoly ; (c) Simple monopoly ; (d) All the three
Last Answer : (b) Pure monopoly ;