Joint Entrance Examination: JEE Main and Advanced

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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

Halo Arenes

April 22, 2023

Halo arenes are obtained by replacement of hydrogen atom of aromatic hydrocarbon by halogen.

Alkyl Halides

April 18, 2023

Alkyl halides are esters of alcohols and hydracids. Based on the carbon to which halogen is attached, alkyl halides are classified into primary, secondary and tertiary halides.

Aromatic Hydrocarbons

April 14, 2023

Benzene is the parent member of Aromatic compounds. The compounds which resemble benzene in structure and properties are called aromatic compounds. Aroma means fragrant smell (pleasant smell).

Alkynes

April 10, 2023

Alkynes are commonly known as acetylenes. Acetylene is the simplest and important member of the alkyne series. Alkynes contain – C ≡ C –. General molecular formula of alkynes is C_nH_2n-2.

Alkenes

April 05, 2023

Alkenes are unsaturated hydrocarbons. These contain a C=C. They contain two hydrogens less than corresponding alkanes. Double bonded carbon undergoes hybridisation. These are otherwise known as Olefins.

Alkanes

March 16, 2023

General molecular formula of alkanes is C_nH_2n+2. These are saturated hydrocarbons. They contain C-C and C-H bonds. They are commonly known as paraffins due to their less reactivity.

Basics of Organic Chemistry

March 11, 2023

Organic compounds are carbon compounds and the study of chemistry of carbon compounds is called organic chemistry. Organic compounds contain Carbon, Hydrogen, essentially and Oxygen, Nitrogen, Sulphur, Phosphorus, Halogen frequently.

Environmental Chemistry

March 06, 2023

Environment constitutes air, water, soil, plants and atmosphere around us. The branch which deals with the relationship between living organisms and environment is called environmental chemistry.

Transition Elements

March 06, 2023

The elements in which the differentiating electron enters the d-orbital of the penultimate shell are called d-block element. d-block elements are present in between electropositive s-block elements and electronegative p-block elements in the periodic table.

Group 18 Elements

March 01, 2023

Helium, Neon, Argon, Krypton, Xenon and Radon are collectively known as noble gases or Aerogens or rare gases. They have completed s and p orbitals in the outer shell.

Group 17 Elements

February 24, 2023

F, Cl, Br, I and At constitute the VII A group in periodic table. They are p - block elements and their outer shell configuration is ns²np⁵.

Group 16 Elements

February 19, 2023

VI A group contains oxygen, sulphur, selenium, Tellurium and polonium belongs to p-block of periodic table. The first four elements are collectively called as chalcogens since many metals occur as oxides and sulphides.

Group 15 Elements

February 12, 2023

VA group elements are Nitrogen (N) (7), Phosphorus (P) (15), Arsenic (As) (33), Antimony (Sb) (51), Bismuth (Bi) (83). These elements are called as pnicogens. Their compounds are called pnictides.

Group 14 Elements

February 09, 2023

Almost all properties will show a normal trend from C to Si, But, beyond Si, the trend or change slows down due to ineffective screening caused by d and f electrons.

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.

Alkaline 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.

Alkali 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.

Hydrogen 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.