Mcq on adsorption process

This set of Chemistry Multiple Choice Questions & Answers (MCQs) focuses on Surface Chemistry - Adsorption. 1. A finely divided substance is more effective as an adsorbent. a) True. b) False. View Answer. Answer: a. Explanation: Adsorption is a surface phenomenon Jul 09,2021 - Test: Adsorption - 1 | 12 Questions MCQ Test has questions of Chemistry preparation. This test is Rated positive by 86% students preparing for Chemistry.This MCQ test is related to Chemistry syllabus, prepared by Chemistry teachers This contains 30 Multiple Choice Questions for Chemistry Test: Adsorption - 2 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Adsorption - 2 quiz give you a good mix of easy questions and tough questions. Chemistry students definitely take this Test: Adsorption - 2 exercise for a better result. Adsorption and Adsorption isotherm - MCQ. Dear Readers, Compared to other sections, Chemistry is considered to be the most scoring section. If prepared thoroughly, chemistry can help students to secure a meritorious position in the exam. the absorption process is called Physical adsorption Chemical adsorption Heat of adsorption Enthalpy of.

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Answer: a. Clarification: In chemical engineering and related fields, a unit operation is a basic step in a process. Unit operations involve a physical change or chemical transformation such as separation, crystallization, evaporation, filtration, polymerization, isomerization, and other reactions. 2. Refrigeration is a mass transfer process Chemical process - adsorption - theory of adsorption - ion exchange process - chemical oxidation - advanced oxidation process - sludge handling and disposal -miscellaneous treatment processes. Click the Below link DOWNLOAD to save the Book/Material (PDF) OCY751 Waste Water Treatment MCQ Collection Conventional adsorption is a. 1) irreversible process. 2) reversible process. 3) none of these. 4) either reversible or irreversible Surface Chemistry Class 12 Chemistry MCQ Questions with Answers. Refer below for Surface Chemistry Class 12 MCQ Questions with solutions. Solve questions and compare with the answers provided below. Question. Which one of the following characteristics is associated with adsorption? (a) DG and DH are negative but DS is positive MCQs on Surface Chemistry. Surface chemistry deals with the study of the phenomena occurring at the surface of the boundary separating two bulk phases. Adsorption is the process of attracting and holding a substance's molecules on the surface of a liquid or a solid resulting in a higher surface concentration of the molecules

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  1. Multiple Choice Questions (MCQ) and Answers on Downstream Processing. Question 1: For the extractions operation, the selectivity should be. >1. <1. zero. Answers: 1. Question 2: The purity of a solute collected between two times t1 and t2 during chromatographic separation can be calculated as. amount of solute eluted - amount of impurity eluted
  2. Students can solve NCERT Class 12 Chemistry Surface Chemistry MCQs Pdf with Answers to know their preparation level. Surface Chemistry Class 12 Chemistry MCQs Pdf. 1. In Freundlich adsorption isotherm x/m = Kp 1/n, the value of 'n' at low pressure is (a) more than one. (b) less than one. (c) equal to one. (d) from zero to one. Answer. Answer:
  3. Check the below NCERT MCQ Questions for Class 12 Chemistry Chapter 5 Surface Chemistry with Answers Pdf free download. MCQ Questions for Class 12 Chemistry with Answers were prepared based on the latest exam pattern. We have provided Surface Chemistry Class 12 Chemistry MCQs Questions with Answers to help students understand the concept very well
  4. Absorption of Water Multiple Choice Questions and Answers 1. Root cap has no role in absorption because it has (a) no direct connection with vascular system (b) loosely arranged cells (c) no cells containing chloroplasts (d) no root hairs Answer: (d) no root hairs 2. Wilting of the plant occurs when (a) phloem is blocked (b) xylem is blocked (c) both xylem and phloem are blocked (d) a few old.

According to adsorption theory of catalysis, the speed of the reaction increases because: [CBSE AIPMT 2003] 1 point adsorption produces heat which increases the speed of the reaction. in the process of adsorption, the activation energy of the molecules becomes large Adsorption is an exothermic process. The change in enthalpy when one mole of a substance is adsorbed, is called enthalpy of adsorption. The adsorption process is similar to the condensation process. The reverse process is called desorption and is endothermic in nature. It is similar to the evaporation process

A. the adsorption at a single site on the surface may involve multiple molecules at the same time. B. the mass of gas striking a given area of surface is proportional to the pressure of the gas. C. the mass of gas striking a given area of surface is independent of the pressure of the gas. D 22. According to adsorption theory of catalysis, the speed of the reaction increases because (a) the concentration of the reactant molecules at the active centres of the catalyst becomes high due to adsorption. (b) in the process of adsoption, the activation energy of the molecules becomes large

NCERT Exemplar Class 12 Chemistry is very important resource for students preparing for XII Board Examination. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 12.. Question from very important topics are covered by NCERT Exemplar Class 12.You also get idea about the type of questions and method to answer in your class 12th examination Alfa Chemistry employs more than 200 full time staff, of which approximate 80 are Ph.D. and M.S. chemists, specialized in synthetic chemistry, process optimization, and research. Concentrations of Commonly Used Laboratory Reagent An adsorption process, results in an reversible chemical reaction of the analyte with sorbent surface. D. An absorption process, results in an reversible chemical reaction of the analyte with sorbent surface. E. None. 23

The adsorption of gases on metal surfaces is called a) catalysis b) occlusion c) adsorption d) absorption Answer: Option b 4. The process of adsorption is a) exothermic b) endothermic c) sometimes exothermic or endothermic d) none of the above Answer: Option a. 5. Physical adsorption is a _____ process NATIONAL ELIGIBILITY CUM ENTRANCE TEST(UG) - 2021 [NEET(UG)-2021] will be conducted by the Central Board of Secondary Education (CBSE), for admission to MBBS/BDS Courses in India in Medical/Dental Colleges run with the approval of Medical Council of India/Dental Council of India under the Union Ministry of Health and Family Welfare, Government of India except for the institutions established. If the adsorbate molecules are bound to the surface of adsorbent by chemical bonds, the adsorption is known as chemical adsorption or chemisorption. Characteristics of chemisorption: * Energetics & kinetics: Chemisorption is also an exothermic process and the enthalpy values are higher (80-240 kJ mol -1 ) as it involves formation of chemical bonds

Adsorption and Adsorption isotherm - MC

Adsorption is an exothermic process and enthalpy change is always negative. When adsorbate molecules are adsorbed on the surface, freedom of movement of molecules become restricted and this results in decrease in entropy. Adsorption is a spontaneous process at constant pressure and temperature, thus Gibb's free energy is also decreased MCQ on Surface Chemistry - NCERT Books. MCQ on Surface Chemistry. September 2, 2020 by Kishen. NEET Chemistry is the scoring paper in the medical entrance examination. Here, you will discover the NEET Chemistry MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Chemistry objective. d) Thermal Expansion. View Answer. Answer: a. Explanation: Sorption is a physical and chemical process by which one substance becomes attached to another. The reverse of sorption is desorption. 3. The desorption curve is higher than the adsorption curve. a) True. b) False Desorption is the process of removing an adsorbed substance from the surface on which it is adsorbed. Absorption describes a process when adsorption and absorption take place simultaneously. 4 Chemical Kinetics MCQs. Class 12th Chemistry. Adsorption due to strong chemical forces is called (a) Chemisorption (b) Physiosorption (c) Reversible adsorption (d) Both (b) and (c) SOL: (a) Adsorption due to strong chemical bond is called chemical adsorption or chemisorption or Langmuir adsorption. Catalyst and Catalysis Quiz 16. In Haber's process for the manufacture of ammoni

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Solving the Surface Chemistry Multiple Choice Questions of Class 12 Chemistry Chapter 5 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Surface Chemistry Class 12 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge 10. Ion exchange chromatography is based on the. A. electrostatic attraction. B. electrical mobility of ionic species. C. adsorption chromatography. D. partition chromatography. 11. Chromatography is generally used for the separation of mixtures based on the differences in their. A. Shape A) pushing the heated material through an orifice. B) producing a hole by a punch. C) making cup shaped parts from the sheet. D) process of mixing the ingredient. 4. Which from the following factor does not affect Osmotic systems. A) Osmotic pressure gradient. B) Delivery orifice

31. The process of adding known concentration until it complete the reaction with known volume is called as A. Titrant B. Analysis C. Titration D. Titrend Ans.C. 32. In titration end point can be determined by change in colour by A. Measuring cylinder B. Burette C. Instrument D. Indicator Ans.D. 33. The Quantity of chemical in each liter of. Chemistry MCQs for Class 12 with Answers Chapter 5 Surface Chemistry. Answer. Answer: c. 5. When a small amount of FeCl3 is added to a freshly precipitated Fe (OH)3, b reddish brown colloidal solution is obtained. This pheno¬menon is known as. (a) dialysis. (b) peptization. (c) protection Adsorption is instantaneous while absorption is a slow process. C A substance can be adsorbed as well as absorbed simultaneously and the process is called sorption MCQ Which of the following are correct statements (1) Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorption (2).

Multiple choice questions. For some of these questions, you need data from the appendices of Inorganic Chemistry, third edition by C.E. Housecroft and A.G. Sharpe. On opening the book cover you will find a periodic table and a list of elements and atomic masses. Physical constants are listed on the back inside cover of the book Chemical Reaction Engineering MCQ Practice Questions (Chem) Set 1. In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for: Answer : Whole surface of the catalyst is essentially uniform and the adsorbed molecule has no effect on the rate of adsorption per site MCQ on Chapter: Thermochemistry In a chemical process, the amount of total heat change is same no matter by which method the change is brought about. This is statement of_____ (a) law of thermochemistry (b) Hess's law (c) thermodynamic law (d) law of heat of reaction Multiple choice questions and answers on overview of bioorganic and biophysical chemistry MCQ questions PDF covers topics: Isomerism, water, acids and bases, buffers, solutions, surface tension, adsorption and isotopes. Multiple choice questions and answers on prostaglandins and related compounds MCQ questions PDF covers topics Specific surface area of an adsorbent is the surface area available for adsorption per gram of the adsorbent. The greater the surface area of the solid, the greater would be the adsoprtion. Charcoal is a more effective adsorbent than solid wood. Desorption is a process of removing an adsorbed substance from a surface on which it is absobed

JEE Chemistry Surface Chemistry MCQs Set C with answers available in Pdf for free download. The MCQ Questions for JEE Chemistry with answers have been prepared as per the latest 2021 JEE Chemistry syllabus, books and examination pattern. Multiple Choice Questions form important part of competitive exams and JEE exam and if practiced properly can help you to get higher rank View Test Prep - MCQ -CC05.xlsx from NANOFAB 601 at Mount Carmel College. MCQ 1 2 3 4 5 6 7 8 9 10 11 12 12 13 14 15 QUESTION DC sputtering can be used for deposition.

Multiple Choice Questions part -2 for Surface Chemistry. Adsorption depends upon ability of adsorb which depends on critical temperature of gases. Physical adsorption is a reversible process. In involves weak vander Waal forces of interaction between adsorbate and adsorbent Atomic Absorption spectroscopy MCQs . 1 .Choose the correct sequence of process during Atomization in atomic absorption spectroscopy? (GPAT 2019) (a) Desolvation → Nebulization→ Dissociation →Volatilization → Ionization ion (b) Nebulization → Desolvation → Volatilization →Dissociation → Ionization io process synthesis tasks. Experienced engineers rely heavily on certain rules of thumb, or heuristics, for putting together the skeleton of a recovery and purification process (5). A few such heuristics include: • Remove the most plentiful impurities first. • Remove the easiest-to-remove impurities first

11. Question. 1 points. A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is. 0.54 The following section consists of Chemistry Multiple Choice questions on Basic Chemical Engineering. Take the Quiz for competitions and exams Surface Chemistry MCQ Test and Online Quiz : Looking for online test or quiz on Surface Chemistry to upgrade your skill. MCQPoint is one stop destination for your Surface Chemistry MCQ queries. Test your skills toda Chemistry is the field of science which deals with the compounds composed of atoms, i.e. elements, and molecules, i.e. combinations of atoms: their composition, structure, properties, behaviour and the changes they undergo during a reaction with other compounds.Here we will share Experimental Techniques In Chemistry MCQs.. Experimental Techniques In Chemistry MCQs

MCQ's From Pharmaceutics I, Pharm-D. · A survey of the history of pharmacy through ancient Greek and Arab periods with special reference to contribution of Muslim scientists to pharmacy and allied sciences. · An introduction of various official books. · Solutions: Introduction, types, concentration expressions, ideal and real solution. Liquid or dissolved sample :- are typically used with flame atomizer. The sample solution is aspirated by a pneumatic nebulizer transformed into an aerosol which is introduced into a spray chamber where it is mixed with the flame gases and conditioned in a way that only the finest aersols droplets (< 10 μm) enter the flame Adsorption is the adhesion of atoms, ions, or molecules from a gas, liquid, or dissolved solid to a surface. This process creates a film of the adsorbate on the surface of the adsorbent. They are of two types: Physisorption and Chemisorption, e.g., oxygen molecules (red) adsorbed on a bimetallic surface of platinum (purple) and cobalt (green) Chemical Reaction Engineering MCQ Practice Questions (Chem) Set 3. A spherical porous catalyst particle of radius R is subjected to reactant A which reacts to form B by a zero order surface reaction A. Larger image. B. Film mass transfer resistance is negligible and pore diffusion of A is rate controlling Bioprocess Engineering Adsorption; Bioprocess Engineering Freshers; Question: The scale-up process is preferred to which condition? Options. A : The migration of a process from the lab-scale to the pilot plant-scale. B : The migration of a process from the bench-scale to the lab-scale. C : The migration of a process from the small-scale to the.

Biochemical Engineering /. Downstream Processing /. 1. The disk centrifuge is the type of centrifuge used most often for bio separations due to its. a. continuous operation. b. lesser cost. c The pressure swing adsorption process is a cyclic process that removes impurities from the gas using solid adsorbent beds and produces higher-purity hydrogen. Netmock is Indias leading website for UPSC/IAS UPPCS preparation. Areas like General Studies, Current Affairs MCQ, Spectrum Modern Indian History, Indian Polity Laxmikant Indian. MCQ. Terms in this set (27) C12H22O11(aq)+H2O(l)→2C6H12O6(aq) The adsorption of the N2 molecules on the surface of Ru weakens the triple bond between the two N atoms. Based on the diagram, what is the role of Ru in this process Ion Exchange Chromatography Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams of B.Sc, M.Sc, Life-Science, Microbiloggy, Bio-Technology etc. These short solved questions or quizzes are provided by Gkseries adsorption 5. Surface reactions leading to film formation 6. Desorption of volatile by- products 7. Convective and diffusive transport of by-products away from the reaction zone Main Gas Flow Region Gas-phase reactions. Transport to Surface. Adsorption. Surface diffusion. Re-adsorption. Desorption. Nucleation, island and step growth. Substrate.

MCQ's on Industrial Micro Biology for Staff Nurse and Medical Exams. by ADMIN - September 24, 2016 0. 1. The best medium for the production of Penicillin is. a. Nutrient agar. b. Corn steep liquor. c. Sulfite waste liquor Adsorption process among several treatment technologies is applied for removal of fluoride (F-), arsenite (As(III)), and arsenate (As(V)) ions due to the availability of local material and being easy to operate and maintain and in general it is a low-cost technology and is suitable for use in developing countries

MCQ on principles of chromatography: Page-2. The silanization of stationary phase is done by treatment with (D) S. The technique used for analysis of small nonionic, polar molecules (A) Adsorption (B) Partition (C) Ion-exchange (D) Exclusion. The height equivalent to theoretical plate (HETP) is expressed by (A) Decreases (B) Increases. Explanation: In Adsorption detector used in liquid chromatography, the reference cell is packed with inactive glass beads. The other detector cavity is packed with silica, alumina or porous glass beads. 10. Which of the following is true about Laser detectors used in liquid chromatography? a) Causes thermal distortion, has decreased sensitivity

MCQ on Column Chromatography. by - Pharma Education Dr. Sufiyan Ahmad on - October 13, 2020. MCQ on Column Chromatography. Click here to solve the MCQ on Column Chromatography. . Multiple choice question with answer. 1. Silica gel used in most of adsorbent columns contains-OH group. So it is : (GATE 2005 3. Cold tray is provided for liquid N 2 or CO 2 but is used only for extremely small samples.. a) True b) False. Answer: a Explanation: Cold tray is provided for liquid N 2 or CO 2.It is used only for mass spectral analysis of very small samples. 4. Which of the following is most often used in the chromatograph in gas chromatograph MS Adsorption process was carried out for more than 12 h at room temperature, with stirring speed of 100 rpm. Solution pH was not adjusted during adsorption process. Effect of solution pH at various initial solution concentrations. Nitrate solutions with the initial concentration of 10-500 mg/L were prepared. The pH value in solution was also. Activated carbon, also called activated charcoal, is a form of carbon processed to have small, low-volume pores that increase the surface area available for adsorption or chemical reactions. Activated is sometimes replaced by active.. Due to its high degree of microporosity, one gram of activated carbon has a surface area in excess of 3,000 m 2 (32,000 sq ft) as determined by gas adsorption

Schematic representation for adsorption process of

VI. Long Answer Type 78. What is the role of adsorption in heterogenous catalysis? 79. What are the applications of adsorption in chemical analysis? 80. What is the role of adsorption in froth floatation process used especially for concentration of sulphide ores? 81. What do you understand by shape selective catalysis A. adsorption produces heat which increases the speed of the reaction. B. in the process of adsorption, the activation energy of the molecules becomes large. C. the concentration of the reactant molecules at the active centres of the catalyst becomes high due to adsorption. D

Adsorption Engineering Quiz - Quiziz

Surface Chemistry MCQs Question With Answer & pdf (1) Which of the following statement is not correct? (10) Physical adsorption (a) involves the weak attractive interaction between the adsorbent and adsorbate (b) is irreversible in nature (30) Peptization process involves (a) movement of colloidal particles in a magnetic field (b. 13. H 2 S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x.The bulk concentration of H 2 S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in meters) corresponding to an operating line given by, y = 5x + 0.001 i

MODEL PAPER (MCQs) 6. Which of the following is a reversible change: a) Karyorrhexis. b) Pyknosis. c) Karyolysis. d) Swelling of endoplasmic reticulum. e) Gangrenous necrosis. Key: d Ref: Cell Injury, Death and Adaptation. 7. After initiation of an acute inflammatory process third in a sequence of changes in vascular flow is: a) Vasoconstriction CY8151 Engineering Chemistry Subjects MCQ Multi Choice Questions, Lecture Notes, Books, Study Materials, Question Papers, Syllabus Part-A 2 marks with answers CY8151 Engineering Chemistry Subjects Important Part-B 16 marks Questions, PDF Books, Question Bank with answers Key And MCQ Question & Answer, Unit Wise Important Question And Answers, One Mark Question With Answers, Choose The Best Answer The answer is A. As part of the innate immune response, natural killer (NK) cells are one of the earliest defenses mounted by the body against viral infections. Following infection of a cell, viruses typically down-regulate the cellular expression of MHC class I molecules. MHC-deficient virally infected cells are recognized and killed by NK cells

Chemistry MCQs for Class 12 with Answers Chapter 5 Surface

If the two adsorption processes occur in a cooperative way, physical adsorption is an important component of the overall chemisorption process - z The point where curves 1 and 2 intersect becomes the activation energy for chemisorption. The adsorption of organic compounds on solid surface has critica (c) ion exchange process (d) lime soda process or manganese zeolite process 66. A pair of contrasting characters controlling the same trait is called: (a) factors (b) Loci (c) Allele (d) Lineage 67. The antiparticle of an electron is : (a) Positron (b) Proton (c) Alpha particles (d) Beta particles 68 pharmaceutics-mcq-questions-with-answers 3/7 Downloaded from las.gnome.org on July 13, 2021 by guest covers topics: Chemical composition and transport of membranes

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10. In chemical adsorption, adsorption is. A. Several molecular layer thick. B. Multimolecular layer thick. C. Two or more molecular layer thick. D. Unimolecular layer thick. 11. In case of negative catalysis, In presence of a catalyst, A. The rate of reaction increases. B. The rate of reaction decreases or slowdowns or stopped the reaction. C In the process of adsorption, the activation energy of the molecules becomes large done clear. D) Adsorption produces heat which increases the speed of the reaction done clear. View Solution play_arrow; question_answer32) In Freundlich adsorption, isotherm adsorption is proportional to pressure P as [AMU 2002].

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This education chemistry quiz section contain study materials and solved mcq and also fulfill following searches Chemistry Quiz | General Science Chemistry Questions, General Chemistry Quiz, Chemistry 2019 - General Awareness Quiz, chemistry quiz with answers, chemistry quiz grade 10,11, 12, 8, 9th, general chemistry quiz questions with answers, , chemistry quiz questions and answers for class. Show Answer. Workspace. Answer: b. Explanation: The pH range of the human body under favorable conditions is 7.0-7.8. Usually, it depends on the part of the body. Saliva is usually about 7.1 to 7.5, blood needs to be 7.35 to 7.45, stomach acid is 1.5 to 3.5, and urine can range from 4.6 to 8.0, depending on what you have been eating or drinking. NCERT Class 12 Chemistry Multiple Choice Questions (MCQs) & Answers. 23 Physical adsorption of a gaseous species may change to chemical adsorption with ___________ . 24 When Cl2 reacts with hot and cone. NaOH, the oxidation number of chlorine changes from. 26 The half life period of first order reaction is 1386 seconds Next Page Previous Page Biochemical Engineering MCQs Questions Answers 1. the sterilization method depends on on____. A. volume and feed rate B. nature of additive C. both A and B D. None of these 2

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BET (Brunauer, Emmet, and Teller) Isotherm. BET analysis provides precise specific surface area evaluation of materials by nitrogen multilayer adsorption measured as a function of relative pressure using a fully automated analyzer. This information is used to predict the dissolution rate, as this rate is proportional to the specific surface area MCQs: Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysteresis. In such cases, the desorption equilibrium pressure is ______________ that obtained for adsorption Chemical Reaction Engineering Multiple Choice Questions . The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process Chemical Engineering Plant Economics MCQs Chemical Engineering Thermodynamics MCQs Chemical Process MCQs Chemical. Website not working properly. Crack NEET with Online Course - Free Trial. Which one of the following characteristics is associated with adsorption? (1) Δ ∆ G, Δ ∆ H and Δ ∆ S all are negative. (2) Δ ∆ G and Δ ∆ H are negative but Δ ∆ S is positive. (3) Δ ∆ G and Δ ∆ S are negative but Δ ∆ H is positive. (4) Δ ∆ G. MCQs: In an interphase mass transfer process, the lesser the solubility of a given solute in a liquid, the higher are the chances that the transfer process will be_____? Category: Chemical Engineering Mcqs, Published by: T-Code Script Digestion of precipitation :- Digestion is a process keeping the precipitation within the mother liquor for a certain period of time to encourage densification of nuclei. During digestion, small particle dissolve in larger one grow. This process help produce larger crystal that are more easily filtered from solution. IMPURITIES IN PRECIPITATION :