Some Basic Concepts Of Chemistry Important Points: Chemistry is the study of the matter and its interactions with energy. Matter exists in three different states: solid, liquid, and gas. Atoms are building blocks of matter, while the elements are pure substances made up of only one type of the atom.
Compounds are the combinations of different elements, and chemical reactions involves the breaking and forming of the bonds between atoms. The mole is the unit of measurement used in the field of chemistry, and stoichiometry deals with quantitative relationships between the reactants and products in chemical reactions. Acids and bases are the important concepts in chemistry, and pH is a measure of acidity or basicity of a solution.
Organic chemistry deals with the carbon-containing compounds, and polymers are the large molecules made up of repeating subunits. Chemical bonding involves combination of atoms to form molecules or compounds, and intermolecular forces hold molecules together and determine their physical properties.
Some Basic Concepts Of Chemistry Important Points, Some Basic Concepts Of Chemistry Important Points, Some Basic Concepts Of Chemistry Important Points, Some Basic Concepts Of Chemistry Important Points, Some Basic Concepts Of Chemistry Important Points, Some Basic Concepts Of Chemistry Important Points
NCERT Chemistry class 11 chapter 1 – Some Basic Concepts Of Chemistry Important Points
There are 25 important points on some basic concepts of chemistry:
- Chemistry is the scientific study of matter, its properties, and its interactions with other matter and with the energy.
- Matter is anything that has a mass and occupies space.
- There are three different states of matter: solid, liquid, and gas.
- Atoms are basic units of matter and are made up of protons, neutrons, and electrons.
- Elements are the pure substances made up of only one type of atom.
- The periodic table organizes elements based on their atomic structure and chemical properties.
- Compounds are the substances which made up of two or more elements chemically combined in a fixed ratio.
- Chemical reactions involves breaking and forming of the chemical bonds between atoms to create new substances.
- The law of conservation of mass states that the matter cannot be created or destroyed in a chemical reaction.
- Chemical equations represents the reactants and products of a chemical reaction using the chemical formulas and symbols.
- The mole is the unit of measurement used in chemistry to express amount of a substance.
- Avogadro’s number is defined as the number of particles in one mole of a substance (6.022 x 10^23).
- Molar mass is mass of one mole of a substance and is expressed in grams per mole.
- Stoichiometry is the branch of chemistry that deals with quantitative relationships between reactants and products in chemical reactions.
- Acids are substances that donates the hydrogen ions (H+) in aqueous solutions.
- Bases are the substances that accept hydrogen ions (H+) in aqueous solutions.
- pH is a measure of the acidity or basicity of a solution and the value ranges from 0 to 14.
- Buffers are solutions that resists the changes in pH when small amounts of acid or base are added.
- Organic chemistry is the branch of chemistry that deals with study of carbon-containing compounds.
- Functional groups are the specific atoms or groups of atoms that give organic compounds their unique chemical properties.
- Polymers are the large molecules made up of repeating subunits called monomers.
- Chemical bonding is the process of combining the atoms to form molecules or compounds.
- Covalent bonds involves the sharing of the electrons between atoms.
- Ionic bonds involves.the transfer of electrons between the atoms to form ions that are attracted to each other.
- Intermolecular forces are the forces that holds the molecules together in a solid or liquid state and determines their physical properties.
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155 out of 200 questions were directly asked from these notes in NEET 2024
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