Decomposition involves splitting of a compound to form two or more substances. Neutralisation is the reaction between acid and base to form a salt. Download NEET UG Chemistry Some Basic Concepts MCQs in pdf, Chemistry chapter wise Multiple Choice Questions free, mass of base = Eqv. Magnetic separation can separate magnetic components from non magnetic ones. It means slightest variation may occur at the second place of decimal or we can say that uncertainty is ± 0.01 g. Now consider the weight 6.4234 g. It may correctly be expressed as 6.4234 ± 0.001 g. In the first case the weight contains three significant figures and in the second case weight contains five significant figures. 40, 30: B. 1.752 = 1.75 (2 is less than 5). Answer. METHODS OF DETERMINING EQUIVALENT MASSES : and ratio of weights deposited by equal amount of electricity is in ratio of their equivalent masses. 2%. Pure substance consisting of molecules formed by the combination of atoms of different elements eg. 11th Chemistry Science stream / NEET Chemistry (CY) Some Basic Concept of Chemistry Handwritten Notes in Pdf format After Very Hardworking by contacting Toppers of 11th / NEET we have got Some Basic Concepts of Chemistry Handwritten Notes Download in Pdf. The formation of ammonia can be interpreted in many ways: One mole of N2(g) reacts with three moles of H2(g) to give two moles of NH3(g). Displacement means replacement of one element of compound by another. Practice Now. Applications are: Deriving relationship between molecular mass and vapour density. Anything which occupies space, possesses mass and can be felt is called matter. e.g. NEET Chemistry is divided into three sections, namely, Physical, Organic and Inorganic Chemistry. NEET Chemistry Important Questions Chapterwise NEET 2020 is only a month ahead and it is essential for aspirants to have a proper study strategy to crack this medical entrance exam. Combustion is a complete and fast oxidation of a substance. The law is valid for solid elements except Be, B, Si and C. Atomic mass = Eq. 207, Laxmideep Building Plot No. It can be calculated as-. Equilibrium 8. An organic compound contains carbon, hydrogen and oxygen. Later on oxygen was preferred as standard. Practice Now. It is obtained by adding atomic masses of various atoms present in the formula and this term replaces molecular mass in ionic compounds. Jan 03, 2021 - #150 MCQs PDF on "Some basic concepts of Chemistry " [Neet /Aiims/Jee] MBBS Notes | EduRev is made by best teachers of MBBS. An equation which has not been equalised in terms of number of atoms of reactants and products is called a skeleton equation. 1.4 Crystal Lattices and Unit Cells. This class will be conducted in Hindi and the notes will be provided in English. In 1961 C-12 was chosen as standard and thus "the number of times the atom of an element is heavier than 12th part of C-12 is called atomic mass of the element. 6 The empirical formula of the compound would be (AIPMT 2008) A. 2%. - Mukul Sharma, IIT JEE One-year Classroom Program 2019, - Arpit Jain, IIT JEE Two-year Classroom Program 2020, - Taniya, NEET One-year Classroom Program 2019, - Ishani, NEET One-year Classroom Program 2019. Crystallisation is a process of separating solids having different solubilities in a particular solvent. Some Basic Concepts of Chemistry. Number of molecules in 1 cm3 of gas at NTP is Loschmidt N0. It is the equation representing chemical change in terms of formula of reactants and products. occupying a volume V ml at STP. The students are advised to understand the basic concepts taught in NCERT textbooks thoroughly. The component of solution having larger proportion is solvent and others are solute. In comparison to Physics and Biology, Chemistry is the most scoring section. That amount of substance whose mass in grams is equal to its molecular mass or the equivalently molecular mass of a substance expressed in grams is called gram molecular mass. Table of Contents. mass of base × Acidity. NEET Chemistry : Some Basic Concepts of Chemistry. If the digit after the last digit to be retained is less than 5, the last digit is retained as such. 3. Classification of Elements and Periodicity in Properties, Purification, Qualitative and Quantitative Analysis of Organic Compounds, Classification and Nomenclature of Organic Compounds, Hybridisation & Shapes of Organic Molecules, General Principles & Processes of Isolation of Elements, Principles related to Practical Chemistry, Please fill in the details for Personalised Counseling by Experts, Not found any post match with your request, Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy, Join IIT JEE & NEET Online Courses at CLEAR EXAM. Classification of Elements and Periodicity in Properties. Some common derived units are: STANDARD PREFIXES FOR EXPRESSING THE DECIMAL FRACTIONS OR MULTIPLES OF FUNDAMENTAL UNITS, Example : Let the true weight of a substance be 3.00g. It states that "equal volumes of all gases, under similar conditions of temperature and pressure contain equal number of molecules". It is the easiest section of NEET Chemistry. Unit 1 – Some Basic Concepts of Chemistry – Exercise. Hydrolysis involves reaction of salts with water to form acidic or basic solutions. (c) 18 grams... 3. If VA is volume of solute and VB is the volume of solvent then. 2. It is the mass of a substance expressed in grams or equivalently the quantity of substance whose mass in grams is equal to its equivalent mass is called one gram equivalent or gram equivalent mass. C6H6 is molecular formula of benzene. Find all the NEET Chemistry important questions from the chapter Some Basic Concept of Chemistry With solutions to perform better in the exam here. Mixtures can be separated into constituents by following methods: Filtration can separate those mixtures whose one component is soluble in a particular solvent and other is not. This class will be beneficial for all the aspirants of NEET UG. NEET Chemistry Organic Chemistry - Some Basic Principles And Techniques questions & solutions with PDF and difficulty level NEET help on Whatsapp Chat 8527521718 If WA is mass of solute and WB the mass of solvent, then, It is the number of parts by volume of solute per hundred parts by volume of solution. (A) In Agriculture and Food: (i) It has provided chemical fertilizers such as urea, calcium phosphate, … Related posts . It is the number of H+ ions that can be displaced from one molecule of a substance. mass of acid × Basicity, Mol. Multiple Choice Questions. Some Basic Concepts of Chemistry: DPP – 05. All are gases indicated by letter (g) and coefficients 3 for H2 and 2 for NH3 are called stoichiometric coefficients. MCQs on Some Basic Concepts of Chemistry for NEET 1. Elements X and Y combine to form two compounds XY and X2Y. Some Basic Concepts of Chemistry - Test 1. CH is empirical formula of benzene. Electrochemistry. One mole of chlorine combines with certain weight of a metal giving 111 g of its chloride. NEET 2021 will be conducted in the month of May 2021. Revise Chemistry chapters using videos at TopperLearning - 6 3. where W is the mass of liquid in gm. Photochemical changes occur in presence of visible or ultraviolet light. Graham's law of diffusion : It states that rate of diffusion of two gases is inversely proportional to the square root of ratio of their molecular weights. thus, It is the number of parts by weight of the substance that combines or displaces, directly or indirectly, 1.008 parts by mass of hydrogen or 8 parts by mass of oxygen or 35.5 parts by mass of chlorine. Some Basic concepts of Chemistry If Avogadro number NA, is charged from 6.022 ˣ 10²³ mol⁻¹ to 6.022 ˣ 10²⁰ mol⁻¹ If Avogadro number NA, is charged from 6.022 ˣ 10²³ mol⁻¹ to 6.022 ˣ 10²⁰ mol⁻¹, this would change Options (a) the mass of one mole of carbon (b) the ratio of chemical species to […] Some Basic Concepts of Chemistry - Questions, Tests and Video Lectures. Thermodynamics. 1. Main points are : Matter is made up, by indivisible particles called atoms. It is the mass of each isotope determined separately and then combined in ratio of their occurrence. Does not differentiate between atom and molecule. Chemical stoichiometry. Scroll down this page to know more about JEE NEET Chemistry Question Bank for Basic Concepts of Chemistry and … General Organic Chemistry (GOC) GOC starts with the basic concepts of inductive effect, hyperconjugation, resonance & electric effect. ... Class 11 – Chemistry Part 1 – Problems and Solutions. 2%. Gram molecular mass is also called one gram molecule. 1. The table given … 2%. Percentage composition and Molecula.. If prepared thoroughly, chemistry can help students to secure a meritorious position in the exam. (b) 1.806 × 1022. (a) 1.806 × 1023. Live your dream of studying at AIIMS with comprehensive coaching and guidance from seasoned mentors. Structure of Atom 3. H2, O2 etc. This class will be conducted in Hindi and notes will provided in English. Case of B student : Measurements are close (precision) and accurate (Accuracy), Case of C student : Measurement are not close (no precision) and not accurate (no accuracy). velocity is expressed as distance/time. Normality depends on temperature. This class would be benefical for all the aspirants of NEET UG. It is the number of OH– ions that can be displaced from one molecule of a substance. 6. 28g of N2(g) reacts with 6g at H2(g) to give 34g of NH3(g). Position yourself for success with a comprehensive curriculum and guidance from seasoned mentors. Atom is the smallest particle of element which might not be able to exist independently. 2%. Get Some Basic Concepts in Chemistry, Chemistry Chapter Notes, Questions & Answers, Video Lessons, Practice Test and more for CBSE Class 10 at TopperLearning. A change which does not affect chemical composition and molecular structure is a physical change and the one that involves alteration of chemical composition and molecular structure is a chemical change. It can be subdivided as. Atomic Structure (NEET Chemistry Handwritten Notes) Details of Above Atomic Structure. Watch Some Basic Concepts in Chemistry video tutorials for NEET Chemistry. It is the number of gram formula mass of ionic solute dissolved in 1 litre of solution. Vapour density method : Vapour density is the ratio of volume of a gas to the mass of same volume of hydrogen under identical conditions. In this section, you will study about the important topics of the chapter, overview, formulae and some important tips and guidelines for the preparation of the chapter at the best. Distillation can be used to separate constituents of mixtures having different boiling points. March 14, 2020 admin. 4. Chemical Bonding and Molecular Structure 5. Stoichiometry : It is calculation of masses or volumes of reactants and products involved in a chemically balanced reaction. 5. Important formula. Important Chemistry Notes For JEE Main and NEET – Students must prepare notes for chemistry subject while preparing for Joint Entrance Examination and National Eligibility cum Entrance Exam.Chemistry preparation for science students is necessary to take admission in the engineering and medical colleges through the entrance test or exam. … Solutions . So let's go through the necessary preparation tips to ace the organic chemistry section in NEET. Find the atomic weight of X and Y, if the weight of 0.1... 2. The SI system has seven basic units of physical quantities as follows: The units obtained by combination of basic units are known as derived units e.g. Cu, Na, Fe or molecules eg. 5%. Double decomposition or metathesis is the exchange of oppositely charged ion on mixing two salt solutions. Get the Solomon's key to qualifying CBSE NEET exams with the expert guidance of seasoned mentors. It is the average relative mass of the molecule as compared with mass of C-12 atom. They can be diatomic and polyatomic. 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Extraction dissolves one out of several components of mixture. Hey, I'm Rajan.I'm determined to make your exam score grow.Lets start the free course. 60, 40: C. 20, 30: D. 30, 20 . It is the number of moles of solute in 1 kg of solvent. Critical Thinking. It is the mass of solute present in one million parts by mass of solution. Which one will have maximum numbers of water molecules? It is a homogenous mixture of two or more substances. 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 … Atoms of same elements are identical in physical and chemical properties. With value 2.688 × 1019. Some Basic Concepts of Chemistry 2. Structure of Atom. The same amount of metal can displace 2 g of hydrogen from an acid. The atomic weight of the metal is … Some Basic Concepts of Chemistry (b) 1.8 grams of water K 2 CO 3 vs HCl. Hence unit is m/s or ms–1. Suppose a and b are two isotopes of an element with their occurence ratio p : q then. An equation having equal number of atoms of various kinds on both sides is a balanced equation. Classification of Elements and Periodicity in Properties 4. 4. 1. Surface Chemistry . NEET Chemistry Chapter Wise Test Series prevailing on this page has questions of various difficulty levels. Sublimation separates volatile solids which sublime on heating from non-volatile solids. Chemical Kinetics. The measurement reported by three students are as follows. Aspirants need to revise all the topics from the syllabi of Physics, Chemistry and Biology in the most effective manner so as to fetch a good score in NEET 2020. Chemical Combination is reaction between two or more elements or compounds to form a single substance. It is the reactant which is completely consumed during the reaction. The number 6.023 × 1023 is called Avogadro's number and is represented by N0 or NA. "It is the number of times the atom of the element is heavier than H atom" was the first proposed definition. Case of A student : It is precision but no accuracy since measurements one close but not accurate. CALL OR Whatsapp: 9394949438 ClearExam, 2nd Floor, Office No. If the digit after the last digit to be retained is equal to 5, the last digit is retained as such if it is even and increased by 1 if odd. Multiple Choice ... (NEET 2016) A. An Introduction of Some Basic Concept Of Physical Chemistry Vol-1. mass of acid = Eqv. Some Basic Concepts of Chemistry; Structure of Atom; Classification of Elements and Periodicity in Properties; Chemical Bonding and Molecular Structure; States of Matter; Thermodynamics; Chemical Equilibrium; Ionic Equilibrium; Redox Reactions; Hydrogen; s-block Elements – Alkali Metals; s-block Elements – Alkaline Earth Metals; p-Block Elements – Boron Family It is the number of moles of solute present in one litre of solution. 2. 5. States of Matter: Gases and Liquids. Name of … It is the actual formula of a compound showing the total number of atoms of constituent elements e.g. It is the simplest formula of a compound giving simplest whole number ratio of atoms present in one molecule. mass of metal × valency. Thermodynamics 7. The number of atoms present in 0.1 moles of a triatomic gas is. eg: H2O, PCl5, H2SO4, NO etc. 3%. 2. Let A be solute & B is solvent then mole fraction of solute (xA), It is the number of parts by mass of solute per hundred parts by mass of solution. Practice Now. 48 min. In this session , Pankaj Talwar will discuss some basic concept of Physical Chemistry. Neutralisation method for acids and bases : Mol. none of the above. Also if strength is given in normalities, N1 of A & N2 of B. 22.4L of N2(g) reacts with 67.2L of H2(g) to give 44.8L of NH3(g). This document is highly rated by MBBS students and has been viewed 5025 times. Atoms of different substances are different in every respect, Atoms always combine in whole numbers to form compounds, Atoms of resultant compounds possess similar properties. Avogadro's number of gas molecules occupy a volume of 22400 cm3 at N.T.P. In this session, Pankaj Talwar will discuss the basic concept of Physical Chemistry. Victor meyer method : This method can determine the molecular mass as. 2.0 molar solution is obtained, when 0.5 mole solute is dissolved in : … =. NEET Chemistry Preparation Tips: Phenolphthalein is not suitable for the titration of : NaOH vs (COOH) 2. Prepare yourself for IIT JEE Advanced with intensive guidance imparted by seasoned mentors. Abbreviated as SI Units (after the French expression La System International de units). Mixtures are substances made of two or more elements or compounds in any proportion. CO2, H2O etc. Basic Concepts of Chemistry is a part of Physical Chemistry. Redox Reactions 9. Free Download 31st years NEET Chemistry Chapter Wise and Topic Wise Solved Papers. JEE/NEET Class 06: Applications of Equivalent Weight and Practice Questions. JEE/NEET Class 02: Mole Concept, Average Atomic Mass, Avogadro’s Hypothesis and AMU. The question bank is prepared keeping in mind the actual structure and difficulty of the exams. Gravity separation separates constituents having different densities. It is the number of gram equivalents of a solute present in one litre of solution. 5%. The 11th general conference of weights and measures in 1960 recommended the use of international system of units. It is the ratio of moles of a constituent to the total number of moles in a solution. Consider the formation of ammonia. It is a unit which represents 6.023 × 1023 particles. Molecular formula = n × empirical formula, where n is simple whole number. Solid State. Homoatomic molecules are molecules of same element and can be further divided as monoatomic, diatomic and polyatomic molecules depending upon number of atoms. 8 NEET Chemistry - Some Basic Concepts Of Chemistry free mock tests for NEET exam 2020-2021 practice Chemical Bonding and Molecular Structure. 1%. KOH vs H 2 SO 4. 9, Laxmi Nagar Delhi-110092. If the digit after the last digit to be retained is more than 5, the digit to be retained is increased by 1. e.g. It is the unit of representing atomic masses. Most of the students complete this section in very less time as numerical and formula-based questions are usually not asked from this section. Chromatography is the technique of separating constituents of a mixture which utilises the property of difference of adsorption on a particular adsorbent. 27 min. Molarity and mass percentage have the relation M, If a solution of molarity M1 and volume V1 adds up with a solvent to a final volume V2, then molarity M2 is given by, If two different solutions (M1, V1) and (M2, V2) are mixed then molarity of resulting solution is, Also, Molarity × GMM of solute = Normality × GEM of solute. Molecule is the smallest particle of the substance which can exist independently. eg: He, O2, P4 etc. Its elemental analysis gave C, 38.71% and H, 9.67%. 2%. They may be homogeneous or heterogeneous. 1.756 = 1.76 (6 is more than 5). Pure substance consisting of one type of particles in the form of atoms eg. States of Matter 6. (a) 18 molecules of water Heteroatomic molecules are molecules of compound. SOME BASIC CONCEPTS OF CHEMISTRY PHYSICAL QUANTITIES AND SI UNITS The 11th general conference of weights and measures in 1960 recom... 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And coefficients 3 for H2 and 2 for NH3 are called stoichiometric coefficients contains,... Average atomic mass, Avogadro ’ s Hypothesis and AMU studying at AIIMS with comprehensive and... Contain equal number of atoms of different elements eg Chapter Wise and Topic Wise Solved Papers and polyatomic depending.: H2O, PCl5, H2SO4, no etc guidance from seasoned mentors of liquid gm. Total number of atoms of constituent elements e.g and polyatomic molecules depending upon number of OH– ions that be... Forces between atoms in compounds n is simple whole number of inductive effect, hyperconjugation, &... And has been viewed 5025 times Details of Above atomic Structure of same or different substances to form or. Is heavier than H atom '' was the first proposed definition main are!: H2O, PCl5, H2SO4, no etc subject and plan your preparation accordance... For IIT JEE Advanced with intensive guidance imparted by seasoned mentors Solomon 's key to qualifying NEET! Maximum numbers of water ( b ) 1.8 grams of water molecules called a skeleton.... Amount of electricity is in ratio of weights deposited by equal amount of metal can displace g.: this method can determine the molecular mass and can be felt is called Avogadro 's of... Boiling some basic concept of chemistry neet from an acid which is completely consumed during the reaction academic experts based on the guidelines! – Exercise different elements eg felt is called matter eg: H2O,,... May 2021 strength is given in normalities, N1 of a compound showing the number... Simplest formula of a compound to form two compounds XY and X2Y and formula-based questions are by... Section in very less time as numerical and formula-based questions are prepared by academic... Discuss the Basic Concept of Physical Chemistry relative mass of C-12 atom your preparation in accordance with that and is! Prepared keeping in mind the actual formula of reactants and products is called matter position in form! Areas in the formula and this term replaces molecular mass as monoatomic, diatomic and polyatomic molecules depending number! Strong and weak areas in the formula and this term replaces molecular in! Occur in presence of visible or ultraviolet light and X2Y of solution students! 1.8 grams of water molecules solids having different boiling points combined in ratio of their Equivalent:... The compound would be ( AIPMT 2008 ) a compound showing the total number moles. Empirical formula of a compound showing the total number of atoms of same elements are identical Physical! Unit which represents 6.023 × 1023 particles students to secure a meritorious position in month. Been viewed 5025 times valid for solid elements except be, b, SI and C. atomic mass =.. H2 ( g ) compound to form a salt 6 is more 5... By another substances to form two or more substances certain weight of compound. 1.756 = 1.76 ( 6 is more than 5, the last digit to be retained is than! Or ultraviolet light experts based on the syllabus guidelines prescribed by MCI of oppositely charged ion on mixing two solutions. 38.71 % and H, 9.67 % atom '' was the first proposed definition gave c, 38.71 and. Occupy a some basic concept of chemistry neet of solvent depending upon number of atoms of various kinds on both sides is a mixture! Exam score grow.Lets start the Free course Hypothesis and AMU three students are as follows eg: H2O,,... Between acid and base to form two compounds XY and X2Y, H2SO4, no etc atoms in.! 22.4L of N2 ( g ) to give 44.8L of NH3 ( g.. Different boiling points of OH– ions that can be felt is called a skeleton equation one element compound. Electricity is in ratio of weights deposited by equal amount of metal can displace 2 g of its.... Talwar will discuss Some Basic Concepts of Chemistry – Exercise vapour density N0 or NA 11th general conference weights... N2 ( g ) reacts with 67.2L of H2 ( g ) that be... ’ s Hypothesis and AMU revise Chemistry chapters using videos at TopperLearning - 6 Free Download 31st years Chemistry. Be ( AIPMT 2008 ) a and 2 for NH3 are called stoichiometric coefficients 1023 is a! And coefficients 3 for H2 and 2 for NH3 are called stoichiometric coefficients as monoatomic, diatomic and molecules! Be beneficial for all the aspirants of NEET UG splitting of a student: it is the number moles... Neet 2021 will be conducted in Hindi and notes will be provided in English two isotopes of element. Viewed 5025 times of a & N2 of b - Some Basic Concepts of Chemistry –.. Vapour density magnetic separation can separate magnetic components from non magnetic ones solution some basic concept of chemistry neet... Avogadro 's number and is represented by N0 or NA is completely consumed during the reaction two... Discuss Some Basic Concepts of Chemistry has not been equalised in terms of formula of reactants and products involved a. At TopperLearning - 6 Free Download 31st years NEET Chemistry is the smallest particle of the substance which can independently. = n × empirical formula of a compound to form a salt to Physics and Biology, Chemistry can students... In mind the actual Structure and difficulty of the metal is … Inorganic Chemistry I... Masses of various difficulty levels syllabus guidelines prescribed by MCI no etc studying... Of Physical Chemistry and can be further divided as monoatomic, diatomic and polyatomic depending! May 2021 numerical and formula-based questions are usually not asked from this section secure a position... Compound to form a single molecule called polymer Y combine to form two compounds XY and X2Y one have. Are molecules of water ( b ) 1.8 grams of water molecules or Whatsapp: 9394949438,. 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