Hydrogen is an important chapter from the NCERT syllabus. It is one of the highest weightage chapters for the NEET examination. Here in this article, we are sharing NEET video lectures, Summary Notes, and Previous year’s questions with detailed solutions from Hydrogen.


Hydrogen, the most abundant element in the universe and the third most abundant on the planet’s surface, is being envisioned as a major future energy source. It has the most basic atomic structure of any element found in nature. It is made up of only one proton and one electron in atomic form. In elemental form, however, it exists as a diatomic molecule and is known as dihydrogen.


Dihydrogen is the most abundant element in the universe (70 per cent of total mass) and the most abundant element in the solar atmosphere.

Isotopes of Hydrogen

There are three isotopes of hydrogen: Protium, Deuterium, and Tritium. The presence of neutrons distinguishes these isotopes from one another. Ordinary hydrogen, protium, has no neutrons in its nucleus, whereas deuterium (also known as heavy hydrogen) has one and tritium has two.

Uses of Dihydrogen

  • The most important single application of dihydrogen is in the synthesis of ammonia, which is used in the production of nitric acid and nitrogenous fertilisers.
  • Dihydrogen is used in the hydrogenation of polyunsaturated vegetable oils to produce vanaspati fat.
  • It is used in the production of bulk organic chemicals, specifically methanol.
  • It is widely used in the production of metal hydrides.
  • It is used to make hydrogen chloride, a highly useful chemical.
  • It is used in metallurgical processes to convert heavy metal oxides to metals.
  • It is used in space research as a rocket fuel.

Learn more from the topic Hydrogen now

Video Lectures

The two video lecture sessions are conducted by Ms Preeta Rani. She is a subject matter specialist in NEET chemistry and a NEET coach. She will discuss the topic of Hydrogen thoroughly in these two video sessions.

Basidia’s NEET special daily live classes for various subjects will be conducted 4 to 5 times a day with the vision of equipping you with the right knowledge to crack the NEET exam. The sessions are conducted live and the same will be uploaded as a video on the YouTube channel.- NEET Live Classes Subscribe Now

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