Hydrogen

Water

Created byVinay Arya

Last updated 10/2021

English

What you'll learn

The students will have a clear vision about the first element in Chemistry and our life.
They will know about different properties of Hydrogen Element .
The learners will become confident in concept of isotopes, heavy water and nuclear reactions..
They will be perfect in chemical properties of Hydrogen.

Course content

1 section • 14 lectures • 3h 1m total length

Contents of Hydrogen19:44
Explore hydrogen’s central role in chemistry and life, including its unique isotopes, its presence in water and energy production from the sun, and its applications in fuel cells and industry.
Position and Isotopes of Hydrogen17:52
Explore the position of hydrogen in the periodic table, its resemblance to alkali metals and nonmetals, and the three isotopes—protium, deuterium, and tritium—along with key properties.
Laboratory Preparation of Dihydrogen10:07
Explore laboratory methods to prepare dihydrogen, including electrolysis of water and metal-water reactions such as zinc with sulfuric acid. Learn how granulated zinc and reaction conditions control hydrogen production.
Commercial Preparation of Dihydrogen9:07
Distinguish commercial hydrogen production from laboratory methods and outline large-scale processes, including electrolysis of water or sodium hydroxide and steam reforming of natural gas with purification steps.
Properties of Dihydrogen11:02
Explore dihydrogen's physical traits: colorless, tasteless, and odorless; low solubility and liquefaction under high pressure, along with chemical behavior including reactions with nitrogen and nickel-catalyzed hydrogenation of unsaturated hydrocarbons.
Uses of Dihydrogen and Hydrides18:01
Learn how dihydrogen powers ammonia production, oil hydrogenation, balloons and rockets, oxy-hydrogen welding, fuel cells, and hydrogen storage in hydrides (ionic, covalent, and metallic variants).
Water and Chemical Properties of Water15:05
Explore water’s angular 104.5° structure, hydrogen bonding, and why ice floats, plus its chemical properties such as hydrolysis, oxidation–reduction, and copper sulfate water test.
Heavy Water - Preparation, Properties and uses11:57
Heavy water is formed from deuterium (D2O) and prepared by staged electrolysis and fractional distillation of ordinary water. It serves as a coolant and moderator in nuclear reactors.
Hard Water and types of Hardness7:54
This lecture shows how soap tests differentiate soft and hard water, ties hardness to calcium and magnesium ions, and explains temporary versus permanent hardness and boiling effects.
Removal of permanent Hardness8:44
Softening water involves removing temporary hardness by boiling and carbonate precipitation, and permanent hardness by washing soda, sodium polyphosphate chelation, and zeolite ion exchange with brine regeneration.
Preparation of Hydrogen peroxide15:23
Explore hydrogen peroxide preparation from sodium and barium peroxide, electrolysis with sulfuric or ammonium sulfate, and purification to yield stable, long-lasting hydrogen peroxide.
Properties of Hydrogen peroxide11:53
Explore the physical and chemical properties of hydrogen peroxide, a colorless, syrupy liquid, soluble in water, alcohol, and ether, and its oxidizing and reducing behavior in acidic and basic media.
Hydrogen as fuel17:54
Explore hydrogen as a high-energy fuel, its role in the proposed hydrogen economy, and the challenges of production, storage, and fuel cells as clean alternatives to fossil fuels.
Usefulness of water in Biosphere7:12
Water is the biosphere's source of life, enabling digestion, nutrient transport, excretion, energy transfer via ATP, regulating body temperature, and supporting metabolic reactions, germination, and photosynthesis.

Requirements

The learner should be aware of periodic table.

Description

Hydrogen is the lightest element and its atom has the simplest structure among atoms of all

elements.

Resemblance with Alkali Metals.

Resemblance with Halogens.

Unique Position of Hydrogen in Periodic Table. Hydrogen can be placed in group 1 along with

alkali metals. It can also be placed along with halogens in group 17 because many of its

properties are common with those of halogens.

Hydrogen has dual nature but it does not completely resemble with either alkali metals or

halogens. Due to its distinct properties, hydrogen is sometimes referred to as 'rogue element’. It is

allotted a special position in the periodic table and is not associated with any particular group. It is

usually shown on the left side of the periodic table on the top of the alkali elements (group 1), but

separated from them to indicate its distinctive character.

Occurrence of Hydrogen. Hydrogen is the most abundant element in the universe. Spectral

analysis of light emitted by stars indicates that most of them are predominantly hydrogen.

Isotopes of Hydrogen. Natural hydrogen has three isotopes: protium, deuterium and tritium.

(i) Protium has 1 proton in the nucleus and 1 electron in the extra - nuclear part. It is highly stable

and non-radioactive. It constitutes 99.85% of hydrogen gas.

(ii) Deuterium has one proton and one neutron in the nucleus and one electron in the extranuclear

part. It is also stable and non-radioactive. Deuterium is also called heavy hydrogen and constitutes

0.015% of hydrogen gas

(iii) Tritium has one proton and two neutrons in the nucleus and one electron in the extranuclear

part. It is unstable and radioactive in nature. Tritium occurs in traces and constitutes 1 part in

1017 of the hydrogen gas. The atomic properties of the three isotopes indicate that they can be

used in isotope studies, radioactive tracer studies and NMR spectroscopy.

Who this course is for:

Beginners and Eleventh Standard Students.