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National Testing Agency (NTA) conducts Joint Entrance Examination, JEE (Main), for admission to undergraduate engineering programs at NITs, IIITs, other Centrally Funded Technical Institutions (CFTI), institutions funded by participating State Governments, and other Institutions.
JEE (Main) is also an eligibility test for the JEE (Advanced), which you have to take if you are aspiring for admission to the undergraduate programs offered by the IITs.
The JEE (Main) is conducted twice before admissions in the next academic session. This gives you one more opportunity to improve your score if you fail to give your best in the first attempt without wasting the whole academic year. The best of the two NTA scores is considered for preparation of Merit List and Ranking.
Latest Updates
Group 13 Elements
February 06, 2023
Boron, Aluminium, Gallium, Indium and belong to IIIA group of the Periodic table. The general outer electronic configuration of IIIA group elements is ns2np1.
Read MoreAlkaline Earth Metals
February 03, 2023
Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba) and Radium (Ra) are IIA elements. The oxides of these elements (CaO (Lime), SrO (strontia), BaO (Baryta)) are thermally very stable and basic in nature & hence, they are called alkaline earths.
Read MoreAlkali Metals
January 25, 2023
Li, Na, K, Rb, Cs and Fr belongs to IA group. Oxides of Li, Na, K, Rb and Cs dissolve in water giving strong alkalies. So, these elements are known as alkali metals.
Read MoreHydrogen and Compounds
January 22, 2023
Hydrogen is the most abundant element in the universe. It is the 9th most abundant element in the earth's crust. It occurs only in the combined state except in volcanic gases where it occurs in free state.
Read MoreMetallurgy
September 27, 2022
Generally, metals occur as compounds in the earth crust. The compounds of metals which occur in earth crust, along with the earthy impurities associated with them, are called minerals.
Read MorePeriodicity in Properties
September 21, 2022
Repetition of properties after intervals of atomic number values 2, 8, 18 and 32 is called periodicity. The properties are called periodic properties.
Read MoreClassification of Elements
September 15, 2022
To simplify the study of chemistry of elements and their compounds, systematic classification is necessary. The first attempt was made by Dobereiner.
Read MoreSurface Chemistry
September 09, 2022
Adsorption: The phenomenon in which the molecules of a substance are attracted and adhered to the surface of a solid or liquid. Adsorption is a surface phenomenon. Adsorption is a exothermic reaction. Released heat is called Heat of adsorption.
Read MoreChemical Kinetics
September 03, 2022
The study of rates of chemical reactions mechanisms and factors affecting rates of reactions is called chemical kinetics.
Read MoreElectrochemistry
August 22, 2022
Electrochemistry deals with chemical changes involving electricity. Some chemical reactions require electric current and some chemical reactions produce electric current.
Read MoreChemical Equilibrium
August 16, 2022
Based on the direction of their occurrence, chemical reactions are two types.
Read MoreChemical Solutions
August 10, 2022
A solution is a homogeneous mixture of two or more substances at molecular or ionic levels. Components of true solution can not be separated by filtration, settling, centrifugation.
Read MoreChemical Bonding
July 28, 2022
The force of attraction between atoms or ions is called chemical bond. Formation of chemical bonds involved electrons and nuclei and mainly energy changes. Bond formation is exothermic and bond breaking is endothermic.
Read MoreAtomic Structure
July 22, 2022
According to Dalton, atom is the smallest indivisible particle. But discharge tube experiments have proved that atom consists of some more smaller particles. Electrons, protons and neutrons are the fundamental particles of an atom.
Read MoreSolid State
July 16, 2022
Solids are characterized by their high density and low compressibility as compared to those of the gases. The properties of solids indicate that the molecule (or ions) in them are relatively close together.
Read MoreWave Motion
July 11, 2022
Sound is a form of energy produced by a vibrating body, which requires medium to travel. Sound travels in the form of waves. The audible sound has frequency range 20 Hz to 20 kHz.
Read MoreSimple Harmonic Motion (SHM)
July 04, 2022
The motion that repeats itself after regular intervals of time is called periodic motion. If a particle in the periodic motion moves to and fro over the same path, the motion is said to be vibrating or oscillating.
Read MoreThermodynamics
June 27, 2022
Thermodynamics is the subject dealing with quantitative relation between heat energy and other forms of energy in physico-chemical processes. These results are formulated in to four laws - zero, first, second and third laws of thermodynamics.
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