11.Enumerate any two differences between simple distillation and fractionational distillation. -Chemistry

1 Answer

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 more miscible liquids which have a less than 25K of difference in their boiling point.Eg. Acetone and water can be separated by the use of simple distillation.Eg. It is used to separate petroleum products.

Related questions

Description : Enumerate two reactions of glucose which cannot be explained by its open chain structure.

Last Answer : Ans. (i) Glucose does not give Schiff‘s Test although it contains aldehyde group. (ii) Glucose does not form crystaline product with NaHSO3 .

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 : 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 : Enumerate any two important aspects of environmental management. -Geography

Last Answer : The important aspects are : 1. Encouraging watershed development, rainwater harvesting, water recycling and reuse and conjunctive use of water for sustaining water supply in the long ... impact of developmental plans on environment and to formulate national and regional environmental policies.

Description : Enumerate three factors favouring the location and growth of Hindustan Steel Plant at Durgapur. -Geography

Last Answer : Three factors favouring location and growth of Hindustan Steel Plant are : (i) The Hydroelectricity required for the plant is readily available from DVC. (ii) Iron ore is available from Bolani and Mayurbhanj mines. (iii) Water is available from Durgapur Barrage across the Damodar river.

Description : Enumerate the various causes of rural unemployment in India. -SST 10th

Last Answer : (i) Lack of skill and education : The most important factor responsible for rural unemployment is lack of education and skill. (ii) Domination of primary sector : Most of the ... are dependent on agriculture for their livelihood. Chances of disguised unemployment are very high in agriculture.

Description : Enumerate any three features of Multinational Corportions. -SST 10th

Last Answer : Multinational Companies (MNCs) are the companies that owns or controls the production of their goods in more than one country. The main features of MNCs are : (a) They set up their factories and ... is low and higher profits can be earned. (c) They produce and sell their finished products globally.

Description : Enumerate any three features of the conservative regimes set up in Europe following the defeat of Napoleon in 1815? -SST 10th

Last Answer : (i) The conservatives emphasised the importance of tradition's customs and established institutions like the monarchy, the church, the social hierarchies,property and the family. (ii) The power of ... type from any group was not tolerated. The ideas associated with French Revolution were censored.

Description : Enumerate the factors that led to the expansion of cement industry after the Independence. -SST 10th

Last Answer : The factor that led to the expansion of cement industry after Independence are given below: (i) Decontrol of price and distribution since 1989. (ii) Various policy reforms led the cement industry to ... in East Asia, Middle East, Africa and South Asia apart from a large demand within the country.

Description : Enumerate the features of the proto-industrial system. -SST 10th

Last Answer : (i) It was a decentralised system of production. (ii) Control on production was in the hands of merchants but goods were produced by a vast number of producers working in their ... working for their merchants, workers could remain in the countryside and continue to cultivate their small plots.

Description : Enumerate any three features of “regur” soil. -SST 10th

Last Answer : (i) Regur soil is also known as black soil. (ii) It is ideal for growing cotton, so it is also known as black cotton soil . (iii) It is made up of extremely fine clayey material. (iv) It ... and lime. (v) It develops cracks in hot weather. (vi) It can hold moisture and become sticky when wet.

Description : Enumerate any three features of Multinational Corporations. -SST 10th

Last Answer : Multinational corporation (MNCs) are the companies that own or controls the production of their goods in more than one country. The main features of MNCs are : (i) They Set-up their factories and ... be earned. (iii) They set up their units where they can get cheap labour and other resources.

Description : Enumerate any three causes of the First World War. -SST 10th

Last Answer : (i) Bismarck's diplomacy: After the Franco-Russian War of 1870. the German chancellor, Bismarck used diplomatic policies to keep France isolated. (ii) Division of Europe into two Hostile groups: On ... in Pacific, Germany began to build a powerful navy with a view to achieve parity with Britain.

Description : (i) Draw a labelled diagram of the human female reproductive system. (ii) Enumerate the events in the ovary of a human female during (b) Luteal phase of menstrual cycle (a) Follicular phase -Biology

Last Answer : (i)Refer to page no. 43. (2) (ii) (a) Follicular phase The primary follicle in the ovary grow to become fully mature Graafian follicle. Endometrium gets thickened. The ... Luteal phase The remaining parts of ruptured Graafian follicle transforms into corpus luteum, that secretes progesterone.

Description : Enumerate the names of some notable aerodynamicists?

Last Answer : There are several aerodynamic experts who are responsible for the flight. Some of them are listed as a) Daniel Bernoulli b) Ludwig Prandtl c) George Cayley d) Theodore von Karman e) Martin Wilhelm Kutta f) Richard whitcomb g) Nicholay Zhukowsky

Description : Enumerate the various benefits and drawbacks of constructing dams.

Last Answer : ✔ Dams are built to control flood and store flood water. ✔ Sometimes dams are used for diverting part or all of the water from river into a channel. ✔ Dams are used mainly for drinking and ... ✔ Dams are used for recreational purposes. ✔ Navigation and fishery can be developed in the dam areas.

Description : Enumerate the effects or impact of mining on the environment. Or State the environmental effects of extracting & using mineral resources.

Last Answer : ⮚ Devegetation and Defacing of Landscape ⮚ Subsidence of Land ⮚ Ground water Contamination ⮚ Surface water Pollution ⮚ Air Pollution ⮚ Occupational Health Hazards

Description : 96. You planned the nursing care of the client together with the nursing student. You asked the nursing student to enumerate the clinical manifestations of a client with polycythemia vera. You expect the nursing student to enumerate the following manifestations except

Last Answer : B. Hepatomegaly

Description : Enumerate the advantages and disadvantages of grade separated intersections

Last Answer : Advantages: i) Grade separated intersections provide maximum facility to the crossing traffic and avoid accident while crossing. ii) They provide increased safety for turning traffic. By introducing ... They may cause undesirable crests and sags in vertical alignment in flat or plain areas. 

Description : Enumerate the field tests to which bricks are generally subjected. 

Last Answer : Field tests performed on bricks for its suitability: 1) Shape and size 2) Structure 3) Hardness 4) Soundness 5) Color Test 

Description : Enumerate the morphological adaptations of Xerophytes.  

Last Answer : Ans: 1. Root system is well developed with more lateral roots with root caps and root hairs. 2. Stem may be stunted and woody with thick bark. Stem may be underground in some. Stem is ... Parkinsonia. Leaves may be succulent as in Aloe and Bryophyllum. Leaf surface is shiny as in Calotropis.  

Description : Enumerate the morphological adaptations of Hydrophytes. 

Last Answer : Ans:  1. Roots are either absent (Wolffia, Ceratophyllum) or poorly developed (Hydrilla). Rooted hydrophytes have root caps but not others. Free floating hydrophytes may have Root pockets as ... upper surface in Nymphaea, Victoria, Nelumbo. Swollen and spongy petioles in Eichhornia and Trapa.  

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 : 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 : Why does pure water can be separated from ink water by a simple distillation?

Last Answer : Distillation is based on the differences between boiling points of the components of a mixture.

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 : 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 : 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 : 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 : What are some simple chemistry or physics "tricks" to use in a magic show for children?

Last Answer : levitation using a hidden supercooled magnet.

Description : 11. Explain with the help of a diagram, why a pencil partly immersed in water appears to be bent at the water surface. [Delhi] -Chemistry-10

Last Answer : Answer. Light from different points on the pencil, immersed in water refracts and appears to come from a point above the original position.

Description : What is the answer to longman chemistry book 11 14 page 179 all questions?

Last Answer : I DONT KNOW PLZ HELP

Description : What is the importance of customized wedding cards Are they essential What are the differences between an e-wedding card invitation or a simple customized wedding card?

Last Answer : A wedding card is considered a must for inviting people on the biggest occasion. It is not linked with any specific culture but is used worldwide for invitation purposes. It is made out of cardboard stock ... couple, date of the occasion, venue of the event, and name of close family members, etc.

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 : What is Partial Distillation of Petroleum ?

Last Answer : Petroleum obtained directly from a mine is called crude oil or petroleum. This crude oil is separated based on the boiling point in the partial distillation method. Partial distillation is a type of ... , naphtha , kerosene , diesel , paraffin mam and pitch. Which is used for various purposes

Description : What is partial distillation ?

Last Answer : Partial distillation is the process of separating a mixture of multiple liquids into parts

Description : Alcohol prepared by the distillation of wood is: (1) Propyl alcohol (2) Methyl alcohol (3) Ethyl alcohol (4) Glycerolx

Last Answer : (2) Methyl alcohol Explanation: Alcohol prepared by the distillation of wood is Methyl alcohol. It is also called wood spirit.

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 : Which method will be employed to test the hardness of water? (1) Boiling (2) Distillation (3) Formation of lather with soap (4) None of these

Last Answer : (3) Formation of lather with soap Explanation: Soap solution is used to measure the hardness of rain water, temporarily hard water and sea-water. Hard water does not form soap lather. This is ... in hard water react with soap to form calcium stearate or magnesium stearate and thus forms scum.

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 : 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 : 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 : 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 : Sea water can be purified by the process of – (1) distillation (2) evaporation (3) filtration (4) fractional distillation

Last Answer : (1) distillation Explanation: The traditional process used in desalination operations is vacuum distillation- essentially the boiling of water at less than atmospheric pressure and thus a much ... when the vapor pressure equals the ambient pressure and vapor pressure increases with temperature.

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 : _______ is the process in which acids and bases react to form salts and water. (1) Neutralization (2) Electrolysis (3) Distillation (4) Hydrolysis

Last Answer : (1) Neutralization Explanation: Neutralization is a process when acids and bases react to form salt and water.

Description : Why Glycerol could not be prepared by steam distillation?

Last Answer : Glycerol decompose at its Boiling point.