classification of acids class 10

Salts. Classification of Acids Chemistry - Class 10 &12 NTSE IIT ... Acids Here you will learn more about chemical reactions, acids, bases, salts, carbon compounds, … Acid tastes sour and it can be identified by tasting it, even bases can be identified by tasting as it tastes bitter. Acids is defined as the one which produces hydrogen ions in water. The most frequent active site amino acid residues out of the 20 amino acids forming the protein are polar amino acids, aspartate, cysteine, glutamate, histidine, Serine, and lysine. Chemicals from … 3)Salts. Classification of Proteins based on Composition: Ø Two broad categories of proteins according to its composition, they are: (A). Ammonium Hydroxide (NH 4 OH) 10. sodium carbonate, —Na 2 CO 3.10H 2 O, permanent hardness 11. The Arrhenius definition of acid-base reactions is a development of the "hydrogen theory of acids". ICSE Class 10 Chemistry Last Minute Study Matter: 30 practice MCQs on Acid Base Salt [Part 1] Acids and bases impact our day to day life and chemistry as well. The formal taxonomic classification of viruses … Acid,Bases and Salts. Acidic Sodium aluminate. Customer Care : 6267349244. Acids and bases can be classified as organic or inorganic. Classification of acids: Classification of acids based on source: Based on the source the acids were classified into two types. *NAME- PIYUSH BHANDARI *CLASS- ‘10’th *SECTION- ‘A’* *SUBJECT- SCIENCE P.P.T *SUBMITTED TO- RAHUL GAUR 2. This is the currently selected item. 26 Posts. On the basis of a) composition – elements, compounds and mixtures b) state – solids, liquids and gases c) solubility – suspensions, colloids and solutions. The entire NCERT textbook questions have been solved by best teachers for you. Virus classification is the process of naming viruses and placing them into a taxonomic system similar to the classification systems used for cellular organisms.. Download CBSE class 10 Science study material in PDF format. Class II Flash point at or above 100 F and below 140 F *Note: An . In … In the crucial hour of Class 10 Board exams, Acids, Bases and Salts Class 10 Notes aims at increasing the self-confidence of the students by offering a simple way to study or revise the chapter. 1. acids 2. citric acid 3. In this page, we are providing Periodic Classification of Elements Class 10 Extra Questions and Answers Science Chapter 5 pdf download. Chapter wise Summary. Get Revision Notes of Class 10th Science Chapter 2 Acids, bases and salts to score good marks in your Exams. ECCS Class 2 ADME Profiles. Corrosivity is a form of toxicity to the tissues that the acid contacts. For example, nitric acid (HNO 3) , sulphuric acid (H 2 SO 4) and phosphoric acid (H 3 PO 4) are oxyacids. 10. 1) capable of binding to host cell ribosomes and being translated into viral proteins. Understand the meaning and classification of acids and bases. CBSE Class 10 Chemistry Worksheet for students has been used by teachers & students to develop logical, lingual, analytical, and problem-solving capabilities. Our notes of Chapter 5 Periodic classification of elements are prepared by Science experts in an easy to remember format, covering all syllabus of CBSE, KVPY, NTSE, Olympiads, NCERT & other Competitive Exams. These notes provide the students with the summary of the chapter, important points to remember and detailed explanation of important concepts and derivations for better understanding. For Eg: Citric acid, Formic acid etc . Bases include the metal oxides, hydroxides, and carbonates. For example, nitric acid (HNO 3), sulphuric acid (H 2 SO 4) and phosphoric acid (H 3 PO 4) are oxyacids. Conjugated Proteins (A). acids and bases: Classification. Virus classification is based mainly on characteristics of the viral particles, including the capsid shape, the type of nucleic acid (DNA or RNA, double stranded (ds) or single stranded (ss)) within the capsid, the process of replication, their host organisms, or the type of disease they cause. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. Acid. Acetic Acid (CH 3 COOH) 8. Classification of Acids Classification on the Basis of the Concentration of Acid. Find out what are organic acids. Chapter 1: Chemical Reactions and Equations. Example: Phosphoric acid (H 3 PO 4) Classification on the Basis of their Strength (a) Strong Acid The acid which undergoes complete ionisation in an aqueous solution is known as strong acids. This reaction is called a … Given salt, find acid and base. Benzoic acid. Fatty acids are saturated and unsaturated carboxylic acids containing between 12-24 carbon atoms. Given here is the complete explanation of the chapter, along with examples and all the … Chapter 4: Carbon and its Compounds. Students can practice free MCQs as have been added by CBSE in … → Acids are sour in taste and change the colour of blue litmus to red. MCQs. This course covers the complete NCERT / CBSE course based syllabus with all chapters of Class 10th Chemistry which has been taught topic wise. Check important MCQs from CBSE Class 10 Science Chapter 2 Acids, Bases and Salts to prepare for the objective type questions in CBSE Science Board Exam 2021-22. (a) In terms of Ionic Theory, define the following: (i) An acid. … The most frequent active site amino acid residues out of the 20 amino acids forming the protein are polar amino acids, aspartate, cysteine, glutamate, histidine, Serine, and lysine. The active site amino acids are assembled to the cluster in the right conformation by the 3-dimensional folding of the primary amino acid sequence. Class 10. Sulphuric acid (H 2 SO 4)Carbonic acid (H 2 CO 3)(c) Tribasic Acid The acid on complete ionisation produces three hydronium ions per molecule of acid in aqueous solution. Fire fighters may enter the area only if they are protected from all contact with the material. There are 20 genetically encoded α-amino acids found in peptides and proteins 19 are primary amines, 1 (proline) is a secondary amine A salt is formed in a neutralisation reaction between an acid and a base. Sulfuric acid. Depending upon the elements present, acids may be classified as follows. Chapter 3: Metals and Non-Metals. Materials that, on short exposure, could cause serious temporary or residual injury, including those requiring protection from all bodily contact. Free Online tests & assessment tests for CBSE, Class 10, Science are placed here. These bubbles catch fire when the flame is brought towards the test tube. Svante Arrhenius Acids and Bases. Class 2 compounds in this dataset showed an average human fa of 94% (Fig. CBSE Class 10 Science Book Chapter 2 Acids, Bases and Salts MCQs with Answers. CBSE Class 10 Science Notes Chapter 2 Acids Bases and Salts Pdf free download is part of Class 10 Science Notes for Quick Revision. Other examples of … Chapter 6: Life … Hydrochloric Acid (HCl) 7. MyCBSEguide provides solved papers, board question papers, revision notes and NCERT solutions for CBSE class 10 Science. 10. For example, the … Phosphoric Acid, 10% v/v Safety Data Sheet according to Federal Register / Vol. All the MCQs are taken from NCERT Textbooks issued for session 2021-2022. MCQ Questions for Class 10 Science Pdf: Science subjects which include Physics, Chemistry and Biology are very important for students who want to score good marks in their CBSE board examination.Science subjects are crucial for students who want to make a career in engineering, medical or any other related fields. Acids and bases can be classified as organic or inorganic. Acids Bases and Salts Class 10, Summary, Explanation and Notes of Acids Bases and Salts Science Chapter 2. Welcome to the online test for class 10 science. Class 10 Class 12. When it reacts with sulfuric acid it acts as a base while when it reacts with sodium hydroxide it acts as acid. It's found in diluted form as muriatic acid. Here we have given NCERT Class 10 Science Notes Chapter 2 Acids Bases and Salts. The Class 10 Science Chapter 2 PDF contains solutions to every question in Class 10 Science Chapter 2. Class 10 Science Chapter 2 includes the concepts of Acid-base indicators or mixtures of these dyes which are used to indicate the presence of acids and bases. Classification of Acids Depending upon the elements present, acids may be classified as follows. Download free PDF of best NCERT Solutions , Class 10, Chemistry, CBSE- Acids, Bases and Salts . 5. yellow colour, pink colour 6. Students are advised to practice the NCERT MCQ Questions for Class 10 Science Chapter 4 Carbon and Its Compounds with Answers Pdf free download is available here. (ii) An alkali. Classification of Salts What is a salt? On the basis of chemical properties,all the compounds can be classified into three groups: 1)Acids. On the basis of concentration acids are of two types: Concentrated Acid. This reaction is called a neutralization reaction. For example: Laboratory type Sulphuric Acid (H 2 SO 4 ) ( roughly 98 percent by weight) is a concentrated acid and so is the acid produced in our stomach. 2b).Furthermore, these molecules have an average f h and F of 72% and 57%, … 665 Questions. Study Material and Notes of Ch 2 Acids, Bases and Salts Class 10th Science. Class 10 Science Chapter 2 MCQ (Multiple Choice Questions) of Acids, Bases and Salts. Because of the very large range of acid strengths (greater than 10 40), a logarithmic scale of acidity (pK a) is normally employed. In several dominant drug classification systems, these four types of classifications form a hierarchy. Test papers and course material for CBSE, Class 10, Science are placed here. Procedure: Activity 2.4 asks us to treat zinc granules with bases like sodium hydroxide. For e.g. A pH scale is a tool for measuring acids and bases. A drug class is a set of medications and other compounds that have a similar chemical structures, the same mechanism of action (i.e. → The sour and bitter tastes of food are due to acids and bases are present in them. Stronger acids have smaller or more negative pK a values than do weaker acids. This class of amino acids includes serine, threonine, cysteine, asparagine, and glutamine. 1: Transcription of Viral Nucleic Acid into Viral mRNA. Classification Acids, Bases - Exam Decoded. A salt is formed in a neutralisation reaction between an acid and a base. Based on this the acid is classified as : 1 Concentrated Acid: When an aqueous solution has a relatively high percentage of acid dissolved in it, then it is a... 2 Diluted Acid: When an aqueous solution has a relatively low percentage of acid dissolved in it, then it is a dilute acid. More ... The word “acid” is derived from the Latin word “acidus” which means sour. These Topper’s Class typed/scanned notes of Periodic Classification Of Elements Class 10th Hand Written Notes in Pdf will help you to understand all key concepts. Acids Bases and Salts – Here is a compilation of Class 10 Science MCQs Chapter 2 Acids, Bases, and Salts. Free Question Bank for 10th Class Science Periodic Classification of Elements Periodic Classification of Elements. Students will come across various chemical properties of acids and bases in Ch 2 Class 10. For Eg: HCl, H 2 SO 4, HNO 3 etc . 3/25/2017 12Namrata Chhabra 13. Morphology: Viruses are grouped on the basis of size and shape, chemical composition and structure of the genome, and mode of replication. For Eg: HCl, H 2 SO 4, HNO 3 etc . Leave a Comment / Blogs, class 10, Videos / By tushar sharma Why spinal cord act as Vice principal Leave a Comment / Blogs , class 10 , Videos / By tushar sharma Concentrated Acids : These are the acids which have high concentration of acid and comparatively lesser amount of water. An indicator is a dye that changes colour when it is put into an acid or a base. Based on Concentration : Acid solutions can be Concentrated and Diluted based on the ratio of acid to water. Check the below NCERT MCQ Questions for Class 10 Science Chapter 2 Acids, Bases and Salts with Answers Pdf free download. A concentrated acid has relatively high … The Omega Families For human nutrition, the most important omega families are omega-3, omega-6, and omega-9 (with omega-7 family, they include virtually all of the unsaturated fatty acids present in a normal diet). Basic. For example, Vinegar is an acid and measures 2.4 on the pH scale. The length of the hydrogen (H) chain differs from one fatty acid to another. Extra Questions for Class 10 Science Chapter 2 Acids Bases and Salts with Answers Solutions. Muriatic acid for industrial purposes typically is 20 to 35 percent hydrochloric acid, while muriatic acid for household purposes ranges between 10 and 12 percent hydrochloric acid. 2)Bases. This course material is arranged subject-wise and topic-wise. Organic acids: Acids obtained from food like curd, lemons, grapes, raw mango, citrus fruits and gooseberry are called organic acids. Important Questions Ask Doubt. 77, No. Acid,Bases and Salts. When an acid reacts with a metal carbonate or metal hydrogen carbonate, it gives the corresponding salt, carbon dioxide gas and water. An indicator tells us whether a given substance is an acid or a base by change in its colour. NCERT Solutions are given in English and Hindi Medium free to use. approved flammable storage cabinet is one which has self-closing doors and is in compliance with OSHA 29 CFR 1910.106(d)(3), NFPA 30, and UFC 79. acetic acid (glacial) fuel oil no. In 1884, the Swedish chemist Svante Arrhenius proposed two specific classifications of compounds; acids and bases. Get Revision Notes of Class 10th Science Chapter 5 Periodic Classification of Elements to score good marks in your Exams. They are used in nearly every type of chemical manufacture. Short Answer Type Questions: Give three examples of mineral acids. Class 10 Short Answer Type Questions-Acid, Base-Salts. But they also deplete stomach acids you need to break down protease inhibitors (a class of HIV drugs). Identify salts as neutral, acidic, or basic. Class 46 - Basic or Halogen-Containing Antimonites, Arsenites and Phosphites Class 47 - Vanadium Oxysalts Class 48 - Anhydrous Molybdates and Tungstates Class 49 - Basic and Hydrated Molybdates and Tungstates: IX Organic Minerals: Class 50 - Salts of Organic Acids and Hydrocarbons: VIII Silicates Nesosilicates Classification of Salts What is a salt? Acids Bases and Salts Extra Questions Very Short Answer Type. Strength of acid and base is expressed in terms of Ph. 2a), suggesting high oral absorption.ECCS class 2 compounds had the lowest average f g and spread over a wider range relative to other class (average ~77%, Fig. For Example, Sulphuric Acid, Hydrochloric Acid etc. (ii) Hydracid : Acids that contain hydrogen and other nonmetallic element(s), except oxygen, are called hydracids. All acid elements have a few things in common i.e all are sour in taste, they turn blue litmus paper to red, and lose their acidity if they’re combined with alkaline substances. They are the basic unit of proteins. Along with these online tests, you can also check out our class 10 science ncert solutions.On this page, you can also find the links to notes, assignments, and worksheets of various class 10 science chapters. Students can solve these Carbon and Its Compounds Class 10 MCQs Questions with … Ph and its biological importance, indicators. Answer these questions selecting the appropriate option given below:(a) Both A and R are true and R is the correct explanation of A. The pH level of acids ranges from Please refer to the detailed notes below. Acidic and basic solutions in water conduct electricity because they produce hydrogen and hydroxide ions respectively. They are organic acids and in-organic acids. CBSE Worksheets for Class 10 Chemistry: One of the best teaching strategies employed in most classrooms today is Worksheets. Ø Simple proteins composed of ONLY amino acids.. Ø Proteins may be fibrous or globular.. Ø They possess relatively simple structural organization. Identify 'P'. Sodium nitrate (i) Simple displacement B. The entire NCERT textbook questions have been solved by best teachers for you. The colour of the paper matches up with the numbers on the pH scale to indicate what kind of substance is being tested. NCERT Solutions for Science Class 10 - Acids Bases and Salts. When we see ingredients listed in a snack packaging, we often see that it contains benzoic acid inside it because benzoic acid is able to preserver food and keeping snack to stay crunchy when consumed by the consumers. -OH group-containing amino acids: Serine and Threonine 3/25/2017 11Namrata Chhabra 12. 7 Videos. Salts Theory: Salts are the compounds formed by the neutralisation reaction between acids and bases. Acids, Bases and Salts Notes of CBSE Class 10 Science Chapter with detailed explanation of the chapter ‘Acids, bases and salts’ along with meanings of difficult words. Some examples of organic bases are: pyridine and ethylamine. Name the method used for preparation of the following salts from the list given below: A. 2)Bases. Amino acids are carboxylic acid in which α-carbon is attached to the amino group as well as it is attached to R- (alkyl) group. Acids and bases can be defined by their physical and chemical observations. Activity 2.4 NCERT Class 10 Science, Chapter 2 Acids, Bases, and Salts. You can also get free sample papers, Notes, Important Questions. Simple Proteins. An indicator tells us whether a given substance is an acid or a base by change in its colour. Chapter 2: Acids, Bases and Salts. Give two examples of organic acids. 0 ... 10th Class Science Periodic Classification of Elements Question Bank ... An element 'P' bonds with chlorine to form an acid. Visitors can download these test papers and course material for free of cost. NCERT Solutions for class 10 Science. At Teachoo, we have solved all the NCERT Questions, Examples from inside the book, Questions from Inside the Book, and some very important Extra Questions. Welcome to Chemistry! (c) A is true but R … Continue reading Assertion and Reason Questions for Class 10 … Some of the more common organic acids are: citric acid, carbonic acid, hydrogen cyanide, salicylic acid, lactic acid, and tartaric acid. Classification of Acids. Offline Apps 2021-22 are also in updated format free to download. Diprotic acid – They can produce two moles of H + ions per mole of acid, e.g., H 2 SO 4. Classification of Viruses. According to new CBSE Exam Pattern, MCQ Questions for Class 10 Science pdf Carries 20 Marks. Diprotic acid – They can produce two moles of H + ions per mole of acid, e.g., H 2 SO 4. The concentration of H+ ions and OH- ions are the base for the concepts of Base or Acids. mcq on acids, bases and salts class 10 pdf, class 10 science chapter 2 mcq online test, mcq on acids, bases and salts class 10 icse, acid bases and salts class 10 mcq online test, 100 mcq from acid bases and salts class 10, quiz on acids, bases and salts for class 10, questions on acids, bases and salts class 10, multiple choice questions on acids, bases and … On this page, you can find all the online quizzes or tests we have to offer. They can classify amino acids into THREE types: i) α-amino acid: The amino group attached to the next carbon of the carboxyl group is called “α-amino acid” All naturally occurring amino acids are in “α-L-amino acids”. Chapter 5: Periodic Classification of Elements. MCQ Questions for Class 10 Science with Answers are prepared as per the Latest Exam Pattern. CBSE Class 10 Science Notes Chapter 2 Acids Bases and Salts Chapter -2 3. (ii) Hydracid : Acids that contain hydrogen and other nonmetallic element(s), except oxygen, are called hydracids. CLASSIFICATION OF SALTS: Following are the main headings that are covered under Chapter 2 Science Class 10 acids bases and salts: Understanding the properties of bases and acids. Toggle navigation 0 . Fatty acids (FAs) are a class of lipids consisting of carbon, hydrogen, and oxygen, arranged as a linear carbon chain skeleton of variable length, generally with an even number of atoms, with a carboxyl group at one end. Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 10 Chemistry Acids, Bases and Salts. The chemical has many industrial and lab uses. Acids are a molecule or other species which can donate a proton or accept an electron pair in reactions. 27.1: Classification of Amino Acids. Multiple Choice … Classification of Salts. Salt is a general term used for the substances that are formed when an acid and a base react with each other. This reaction is called a neutralization reaction. Acid + base → salt + water A salt is an ionic compound consisting of a cation such as a metal ion or an ammonium ion from a base and an anion from an acid. Helical nucleocapsids consist of a helical array of capsid proteins (protomers) wrapped around a helical filament of … NCERT Solutions. Practice: Identify the nature of salts. Example: Sulphuric acid (H 2 SO 4) Phosphoric acid (H 3 PO 4) Nitric acid (HNO 3) Organic acids – Organic acids are corrosive and toxic. For Eg: Citric acid, Formic acid etc . Classification of Acids 1. Observation: Bubbles come out from zinc granules. A base is a substance that reacts with hydrogen ions and can neutralize the acid. Acids which are obtained from living organisms are called organic acid. Simple Proteins (B). Class 10 Science NCERT Book PDF Download. It includes Term 1 - Chemical Reactions and Equations, Term 1 - Acids Bases and Salts, Term 1 - Metals and Non-metals, Term 2 - Carbon a… etc. Most bases are minerals which form water and salts by reacting with acids. Fatty acids with even numbers of carbon atoms occur most frequently in nature. If you have any query regarding NCERT Class 10 Science Notes Chapter 5 Periodic Classification of Elements, drop a comment below and we will get back to you at the earliest. Viruses can store their genetic information in six different types of nucleic acid which are named based on how that nucleic acid eventually becomes transcribed to the viral mRNA (Figure 10.4. The concentration of acid is the amount of acid dissolved in water. Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 10 Chemistry Periodic Classification of Elements. Indicator. Salt is a general term used for the substances that are formed when an acid and a base react with each other. Study Of Acids Bases And Salts. Give two examples of bases. The entire NCERT textbook questions have been solved by best teachers for you. Free Online CBSE Class Notes, NCERT Solutions, Self Study material for Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12 In the crucial hour of Class 10 Board exams, Periodic Classification of Elements Class 10 Notes aims at increasing the self-confidence of the students by offering a simple way to study or revise the chapter. These notes provide the students with the summary of the chapter, important points to remember and detailed explanation of important concepts and derivations for better … When dissolved in an aqueous solution, certain ions were released into the solution. → Litmus solution is a purple dye, which is extracted from lichen. Acids which are obtained from living organisms are called organic acid. Through the Class 10 Science Chapter 2 solutions, you will be able to solve questions based on this chapter easily and strengthen the basic concepts of the subject chemistry. Dental Caries is the result of the formation of dental plaque which harbors bacteria which in turn ferment carbohydrates available in daily food producing acids. Revision Notes ICSE Class 10 Chemistry Acids, Bases and Salts. (b) … Viruses are classified by phenotypic characteristics, such as morphology, nucleic acid type, mode of replication, host organisms, and the type of disease they cause. Fatty acids from 2 to 30 carbons or more occur, but the most common and important ones contain between 12 and 22 carbon atoms and are found in many different … (iii)Neutralisation. Also, the Lewis theory of acids and bases states that acids are electron pair acceptors while bases are electron pair donors. Acids, Bases and Salts [DRAFT] 13. Organic acids and their derivatives cover a wide range of substances. Periodic Classification of Elements. Class 10th science chapter 2 is part of unit 1, Chemical Substances - Nature and Behaviours. Base 14. It includes Term 1 - Chemical Reactions and Equations, Term 1 - Acids Bases and Salts,…etc. Here you can get Class 10 Important Questions Science based on NCERT Text book for Class X. Sodium Hydroxiade(NaOH) 9. There are 20 types of amino acids which are coded by the gene of vertebrate but large numbers of modified (non-standard) amino acids are found in proteins. Science Class 10 Chemistry (India) Acids, bases, and salts Salts. However, the experimental results can make it challenging for them to prepare well for exams. Give two examples of salts. b. Ans: Strong acids are the acids that produce more concentration of hydrogen ions in aqueous solution. The sodium hydroxide, calcium carbonate and potassium oxide are examples of bases. On the basis of chemical properties,all the compounds can be classified into three groups: 1)Acids. These notes provide the students with the summary of the chapter, important points to remember and detailed explanation of important concepts and derivations for better … Here we have covered Important Questions on Acids, Bases and Salts for Class 10 Science subject.. Science Important Questions Class 10 are given below.. These are crucial questions that students need to prepare well before exams for Ch 2 Class 10. 44 We hope the given CBSE Class 10 Science Notes Chapter 5 Periodic Classification of Elements Pdf free download will help you. Which compound is formed when zinc reacts with a sulphuric acid? 1) Classification based on the position of “-NH 2 ”. CBSE Class 10 Science Notes Chapter 2 Acids Bases and Salts Pdf free download is part of Class 10 Science Notes for Quick Revision. Taking these drugs together makes the HIV drug less able to control the infection. b. Ans: Strong acids are the acids that produce more concentration of hydrogen ions in aqueous solution. Answers and explanation of MCQ tests are given just below each questions. NCERT Extra Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers will help to score more marks in your CBSE Board Exams. Full Chapter Videos. binding to the same biological target), a related mode of action, and/or are used to treat the same disease.. Two solutions A and B have pH values of 5 and 8 respectively. Some of the more common organic acids are: citric acid, carbonic acid, hydrogen cyanide, salicylic acid, lactic acid, and tartaric acid. Ca(OH) 2 + H 2 SO 4 → CaSO 4 + H 2 0 2Cu(OH) 2 + 4HNO 3 → 2Cu(NO 3) 2 + 2H 2 O NaOH + HCI → NaCl + H 2 O. Some examples of organic bases are: … We have Provided Acids, Bases and Salts Class 10 Science MCQs Questions with Answers to help students understand the … Typically, only 2-3 essential amino acid residues are involved directly in the bond causing the formation of the product. Polar, Uncharged amino acids: The R groups of these amino acids are more soluble in water, or more hydrophilic, than those of the nonpolar amino acids, because they contain functional groups that form hydrogen bonds with water. Base 4. calcium sulphate hemihydrate, CaSO 4.1/2H 2 O.

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