Chapter 1 some basic concepts of

Calculate the ammonia formed Ans: Mole is defined as the amount of a substance, which contains the same number of chemical units atoms, molecules, ions or electrons as there are atoms in exactly 12 grams of pure carbon Mixtures A mixture is a combination of two or more elements or compounds in any proportion so that the components do not lose their identity.

Class 11 Chemistry Revision Notes for Chapter 1 - Some Basic Concepts of Chemistry

CH is the empirical formula of benzene. Mention the isotopes of carbon Ans: It can be defined as equal volumes of gases at the same temperature and pressure should contain equal no of molecules Calculate the no of molecules present in 2. The mass of one mole of a substance in grams is called molar mass.

State Gay Lussac s law of Gaseous volumes Ans: It is denoted by Vm. A molecule is the smallest particle of an element or a compound which can exist freely Ex: Inorganic compounds are those, which areobtained from non-living sources such as minerals.

NCERT Solutions For Class 11 Chemistry Chapter 1

Hence in this process mol of H2 is required. If any pdf file have any copyright voilation please inform us we shell remove that file from our website. Molarity equation To calculate the volume of a definite solution required to prepare solution of other molarity, the following equation is used: They are also called solutions.

Air is an example of a mixture Mixtures are of two types, homogeneous and heterogeneous.

CHAPTER : 1 SOME BASIC CONCEPTS OF CHEMISTRY. 1 mark questions

What is homogeneous mixture? Write the equation to give relationship between o C and o F Ans: Liquid is a substance which has definite volume but not definite shape.

Some Basic Concepts of Chemistry NCERT Solutions - Class 11 Chemistry

Hydrogen molecule H2water molecule H2O 7. What is molecular formula? Elements are further classified into metals, non-metals and metalloids. Molecular mass is the sum of atomic masses of the elements present in a molecule. Define molecular mass Ans: Commonorganic compounds are oils, wax, fats etc.

It is a exact formula indicates number of different types of atoms present in a molecule of a compound. State Law of Definite proportion Ans: According to this law when gases combine or are produced in a chemical reaction they do so in a simple ratio by volume provided all gases are at same temperature and pressure.

The total number of digits in a number including the last digit whose value is uncertain is called the number of significant figures.

The density of 2M solution of sodium chloride NaCl 1. It is a simplest whole number ratio of various atoms present in a compound. Compounds A compound is a pure substance made up of two or more elements combined in a definite proportion by mass, which could be split by suitable chemical methods.

What is empirical formula? One mole of all gaseous substances at K and 1 atm pressure occupies a volume equal to What is heterogeneous mixture?

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Heterogeneous mixtures have the same composition throughout the sample. What is the value of 1 a. Define mole fraction Ans: Solid is a substance have definite shape and volume All pdf files or link of pdf files are collected from various Resources Or sent by Students.

Atomic Mass Atomic mass of an element is defined as the average relative mass of an atom of an element as compared to the mass of an atom of carbon taken as Chemistry plays an important role in meeting human needs for food, health care products and other materials aimed at improving the quality of life.UNIT 1 SOME BASIC CONCEPTS OF CHEMISTRY Chemistry: Chemistry is the branch of science that deals with the composition, structure and properties of.

UNIT 1 SOME BASIC CONCEPTS OF CHEMISTRY Chemistry: Chemistry is the branch of science that deals with the composition, structure and properties of matter. Home» class11chemistry» NCERT Solutions for Class 11th: Ch 1 Some Basic Concepts of Chemistry NCERT Solutions for Class 11th: Ch 1 Some Basic Concepts of Chemistry 0.

All Chapter 1 - Some Basic Concepts of Chemistry Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks.

Register for online coaching for IIT JEE (Mains & Advanced), NEET, Engineering and Medical entrance exams. Oct 04,  · Class 11 Important Questions Chemistry Chapter 1 Some Basic Concepts of Chemistry.

Learn more Solutions for Finding Value of Molecular Weight,Mass Percentage of NCERT. Chemistry (killarney10mile.com) (Chapter – 1) (Some Basic Concepts of Chemistry) (Class – XI) killarney10mile.com 2 Mass percent of an element Mass percent. Click here to view, download or print flexiprep exclusive Chemistry Class 11 NCERT Solutions: Chapter 1 Some Basic Concepts of Chemistry Part 1.

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Chapter 1 some basic concepts of
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