Modern Periodic Table
Modern Periodic Law: Given by Henry Moosley in 1913. Properties of elements are a periodic function of their atomic number.
Atomic Number: denoted by Z...
Periodic Classification of Elements
Substances containing atoms of only one type. e.g Na, Au, Mg etc. There are around 118 elements known to us. The first classification of...
Some Carbon Compounds
Ethanoic Acid (Acetic Acid )
5-8% solution of acetic acid in water is called vinegar.
Pure acetic acid...
Nomenclature of Carbon Compounds
Nomenclature of Carbon Compounds
Nomenclature is the system of assignment of names given to organic compounds.
Heteroatom and Functional Group
In hydrocarbon chain,...
Chemical Properties of Carbon Compounds
Combustion of Carbon Compounds
Carbon compounds generally burn (oxidize) in the air to produce carbon dioxide and water, and release heat...
Hydrocarbons
Hydrocarbons
The compounds which are majorly made of hydrogen and carbon atoms. Hydrocarbons are further classified as
Saturated compounds
...
Covalent Bond in Carbon
Carbon is a versatile element. Found in .02% in form of minerals an 03% in form of CO2.
...
Chemical Properties of Metals and Non-metals
Comparison of Chemical Properties of Metals and Non-metals:
Property
Metals
Non-metals
Reaction with Oxygen
Metal + Oxygen → Metal oxide
4Na(s) + O2(g) → 2Na2O(s)
4Al(s) + 3O2(g) → 2Al2O3
Metals form basic...
Physical Properties of Metal & Non-metal
Elements are classified broadly into two categories on the basis of properties:
Metals: Iron, Zinc, Copper, Aluminium etc.
Non – metals: Chlorine, Nitrogen, Hydrogen, Oxygen, Sulphur...
Salt in Daily Life
Common salt — A raw material for chemicals:
The common salt thus obtained is an important raw material for various materials of daily use, such...