Properties of Hydrogen

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Topic Content:

Physical Properties of Hydrogen
Chemical Properties of Hydrogen
Test for Hydrogen
Collection of Hydrogen

Physical Properties of Hydrogen:

i. Hydrogen is a gas which is colourless, odourless, and tasteless. Like most gaseous elements, hydrogen is diatomic.

ii. Hydrogen has a melting pointThe temperature at which a solid changes its state to liquid at atmospheric pressure is called the melting point of that liquid. The melting point is usually defined as the point... More of –259.2ºC and a boiling point of -252.77ºC.

iii. At 0ºC and 1-atmosphere pressure (STP), hydrogen has a densityDensity is the measurement of how tightly a material is packed together i.e. how closely the particles are packed in the material. The tighter the material is packed the more its... More of 0.089 g/L.

iv. It is relatively insoluble in water.

v. It is neutral to moist litmus paper.

Chemical Properties of Hydrogen:

Hydrogen is very reactive. It reacts with several elements and compounds to form various products.

1. Combination Reaction:

( a) With non-metals

i. With nitrogen in the

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