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Gases, Liquids & Solids
Which of the following properties is anisotropic?
- Melting Point
- Electrical Conductivity
- Geometrical Shape
Physical properties that depend on the direction are called anisotropic properties. The physical properties of crystalline solids like refractive index, coefficient of thermal expansion, electrical and thermal conductivity, and cleavage plane are anisotropic in nature.
For homogeneous catalysis reaction between liquids, the catalyst should be of which form?
- Can be any of the above
In chemistry, homogeneous catalysis is a sequence of reactions that involve a catalyst in the same phase as the reactants. Phase here refers to solid, liquid, vs gas. Most commonly, a homogeneous catalyst is co-dissolved in a solvent with the reactants.
Transition elements from complexes due which of the following reason?
- Para magnetism
- Vacant d-orbitals
- Large nuclear charge
- Small cation size
Vacant orbitals of central metal atom or iron are filled by ligands to form metal complexes.
In Chemistry, a coordination complex or metal complex consists of a central atom or ion which is usually metallic and is called the coordination center and a surrounding array of bound molecules or ions that are in turn known as ligands or complexing agents. Many metal containing compounds, especially those of transition metals are coordination complexes.