Learning Resource for CBSE students
Covers chemistry part of the syllabus
Atom consists of electrons, protons and neutrons. There is an interesting story on how electrons, protons and neutrons were discovered and how the structure of atom has come to be. It’s worth knowing about the fundamental particles of matter.
Yes, this is all about how atoms combine to form molecules. Combination of atoms to form molecules can be explained by various laws. We not only cover these Laws, but see how actually atoms combine to form molecule, symbols and formula of atoms and molecules and various ways of expressing their masses.
Matter is composed of Solids, Liquids and Gases. For a better understanding of Matter, there is a need to differentiate it on the basis of composition. On the basis of composition, matter can be classified as:
(i) Pure substances; and
(ii)Mixtures.
Matter exists in three states – Solids, Liquids and Gases. These states of matter are inter-convertible by applying temperature and pressure.
Matter in our Surroundings covers topics like what is matter, characteristic properties of matter, States of Matter, Change of State of matter and Evaporation. We cover all these topics in depth. If you have any queries due leave them at the comments. We will positively answer it. Also sharing is caring. Share these notes with friends in facebook.
Try these Class X one mark chemistry question to check your preparedness…[…]
A simple representation of four chapters of Chemistry for Class X in the form of Maps for easy grasp of topics.
To achieve effective cleaning, it is helpful to have a basic knowledge of soap and detergent chemistry. Here we learn the composition of soaps and detergents and their cleaning action.
Single atom or group of atoms, that have similar chemical properties are called functional group.
Carbon is the most versatile element known to man. It is the source of Organic Compounds- believed can only be distilled for living things. Man is a carbon-based animal and our world revolves around it. Here’s a look at why carbon is so important to us.
The Periodic Table is a tabular arrangement of the chemical elements, organized on the basis of their atomic numbers, electron configurations (electron shell model), and recurring chemical properties.
Metallurgy is the science of the study of extracting metals from their ores and modifying the metals for commercial use.
Many metals form ionic bonds when they react with non-metals. Compounds so formed are known as ionic compounds.
Some of the examples of non-metals are carbon, sulphur, iodine, oxygen, hydrogen, etc. The non-metals are either solids or gases except bromine which is a liquid.
Metals in their pure state, have a shining surface. This property is called metallic lustre. Metals are generally hard. The hardness varies from metal to metal.
A salt is an ionic compound that can be formed by the neutralization reaction of an acid and a base.
Bases are substances that, in aqueous solution, are slippery to the touch, taste bitter, change the colour of indicators (e.g., turn red litmus paper blue), react with acids to form salts and/or contain completely or partially displaceable OH− ions.
Acid is any substance that in water solution tastes sour, changes the colour of certain indicators (e.g., reddens blue litmus paper), reacts with some metals (e.g., iron) to liberate hydrogen and reacts with bases to form salts. They give H+ ions in aqueous solution.
To understand Acids, Bases and Salts we need to understand first, how to differentiate between these three category of compounds. So here in the Basics, we start with Indicators, which when used can differentiate between Acids, Bases and Salts and then move to a more scientific method used in the pH Scale. If you want to know more…Read on.
We cover the 5 types of reactions. They are Combination Reaction, Decomposition Reaction, Displacement Reaction, Double Displacement Reaction, Redox Reaction. We also cover the causes of corrosion in Metals and Rancidity in eatables. Read on to find more.
The periodic table of elements is an arrangement of elements in a tabular form. As much as it may seem …
