Question

which properties of magnetism are not shown in gases and liquid

Answer 1

Although magnetism arises from electrons, a large, overall effect such as ferromagnetism only occurs when many atoms can anisotropically align into domains (crystalline regions in a material) to yield a net moment.

As solids diffuse and reorder very slowly under ambient conditions, the net, directionally dependent (anisotropic) magnetic moment can persist.   Conversely, liquids and gases freely tumble and reorder: water rearranges every few picoseconds (10^12 times per second!).  Although individual molecules could have a magnetic moment and several molecules could align, the freedom to readily reorder gives magnetic moments not having a persistent, coherent direction (isotropic) and can easily change with thermal fluctuations.  As such, the fluid will only display its magnetism when forced to allign under an external magnetic field.

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