21 Chemistry -- Non-Metals: Hydrogen

Write the formula of petrol and energy released per Kg by it?

Write the formula of petrol and energy released per Kg by it?

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Who discovered hydrogen and by whom it was named?

Hencry Cavendish discovered Hydrogen in 1766 AD.

Antoine Lavoisier named Hydrogen in 1783 AD.

Source:Hydrogen - Wikipedia

Why does Sun provide enormous quantity of energy?

Why hydrogen is placed with alkali metal group?

How is molecular hydrogen or Dihydrogen(H2) is obtained?

What is the density of Dihydrogen? And by how many times it is lighter than air? Also write the boiling and freezing point of it?

What is occluded hydrogen? Give four reasons for occlusion of hydrogen in metal.

Why does hydrogen gas act as a reducing agent?

Hydrogen is not very reactive under normal conditions. Why?

Many reactions of hydrogen needs heterogeneous catalyst like Ni, Pt, Pd. Why?

Write the types of hydrogen with their definition.

How is atomic hydrogen obtained?

What is Nascent hydrogen? Write the common sources of it? Also write how it is generated.

Nascent hydrogen refers to hydrogen that is liberated during a chemical reaction.

Nascent hydrogen is obtained from the reaction between

Sodium reacts with ethanol to form sodium ethoxide and ethanol. Write the balanced chemical equation.

Na +C2H5OHC2H5ONa +[H]

Aluminium reacts with sodium hydroxide to liberate nascent hydrogen.
Write the balanced chemical equation.

Al + 2 NaOHNa2AlO2+ 2[H]

Zinc reacts with dilute sulphuric acid to form zinc sulphate and nascent hydrogen.
Write the balanced chemical...

Why is nascent hydrogen so active?

Nascent hydrogen is most powerful reducing agent than ordinary hydrogen because nascent hydrogen is in atomic state and atoms are more active than molecules, nascent hydrogen is evolved in small bubbles containing the gas under great pressure, nascent hydrogen is activated by the energy liberated in the reaction in .

Nascent hydrogen is powerful reducing agent than molecular hydrogen which can be proved by following reaction : explain the reactions (i). Acidified potassium test reaction (ii). Acidifie...

Write the difference between Nascent hydrogen and atomic hydrogen.

Atomic Hydrogen vs Nascent Hydrogen
Atomic hydrogen refers to hydrogen obtained by dissociation of molecular hydrogen.	Nascent hydrogen refers to hydrogen that is liberated during a chemical reaction.
Application
Atomic hydrogen is an isolated form of hydrogen, which is highly reactive and energetic; it is a major component in the universe.	Nascent hydrogen is the initial atomic state of hydrogen that is formed during a chemical reaction.

Write the isotope of hydrogen and write their application separately .

Write the application of hydrogen as fuel? Also write its limitation.

Heavy water is also known as what? And Write its formula? Also Write how is it obtained?

Write the biological and Physiological effects of heavy water?

Write the application of heavy water(D2O)?

What is Syn gas? And What is meant by 'exhaustive electrolysis'?

What happens when hydrogen gas is bubbled into acidified FeCl3?

When hydrogen gas is bubbled into acidified FeCl₃solution, H₂gas does not produce any effects no ferric chloride solution. Thus No reaction takes place.

FeCl₃+H₂--------------------> No action

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