SSC Chemistry notes 5th Chapter Chemical Bonds. Inert gases are stable in nature as mono-atomic gases, except these gases the atoms of other elements cannot exist independently in nature. Molecules of fundamental gases are di-atomic like O2, N2, F2, Cl2, Br2 etc. Again molecules of some elements consist of more than two atoms. For example … Read more
Last Updated: March 20, 2026 at 7:48 am
SSC Chemistry notes 3rd Chapter the structure of Matter. The structure of Matter. Every matter of the universe is made of small particles. They are so small that they are not even visible with the high-efficiency microscope. The name of the smallest particle of the fundamental element is called atom and the smallest particle of … Read more
Last Updated: March 20, 2026 at 7:48 am
SSC Chemistry notes 10th Chapter Mineral Resources: Metal-Nonmetal. Bijoypur, Gopalpur of Durgapur Upazilla of Netrokona district of Bangladesh is one of the best tourism places of Bangladesh. Hill of white clay is seen here beside the attractive lake. This clay rich in Kaolin or aluminum is used in ceramic industries. In the beginning, the people … Read more
Last Updated: March 20, 2026 at 7:48 am
SSC Chemistry notes 9th Chapter Acid-Base Balance. Lead is extracted from the acidic residue of rejected batteries of vehicles /IPS/ solar panel in 50 furnaces on the beach of river Jamuna at Bera upozila of Pabna district. People are extremely annoyed at the toxic smoke and bad odor from the furnaces. Crops are not growing … Read more
Last Updated: March 20, 2026 at 7:49 am
SSC Chemistry notes 8th Chapter Chemistry and Energy. In fact, a chemical bond is a store of energy. Energy is associated with formation and breaking of chemical bonds. As the number of changing in chemical bond happened in the world, in all cases transformation of energy happened. We perform us every day works using the … Read more
Last Updated: March 20, 2026 at 7:49 am
SSC Chemistry notes 7th Chapter Chemical Reaction. The elements present in nature are changing gradually. Â There are different kinds of changes. Some of the changes are physical and some are chemical. Every change has some effects. Particularly chemical changes have both good and bad effects. So it is mandatory to have proper knowledge about the … Read more
Last Updated: March 20, 2026 at 7:48 am
SSC Chemistry notes 6th Chapter Concept of Mole and Chemical Calculations. In performing a chemical reaction, it is indeed necessary for a chemist to determine what amount of substance is to use as the reactant and what amount of product and byproduct and unwanted substances are produced. Particularly, in chemical industries, this calculation is a … Read more
Last Updated: March 20, 2026 at 7:48 am
SSC Chemistry notes 4th Chapter Periodic Table. Periodic Table is a conceptual diagram of the properties of the elements expressed in the table. Â Total of 118 elements is detected up to the year 2012. Â It is not possible to remember all the properties of each element separately. In Periodic, Table elements are classified on the … Read more
Last Updated: March 20, 2026 at 7:48 am
SSC Chemistry notes 2nd Chapter the States of Matter. The matter is such a physical entity that has mass and occupies space. Usually, all matters can exist in three different states- solid, liquid and gaseous states. However, at normal room temperature, some matters can exist as solids, some as liquids and some as gaseous. The … Read more
Last Updated: March 20, 2026 at 7:48 am