In the compound CrFe2, the chromium (Cr) atom is bonded with iron (Fe) atoms, which are both transition metals. Transition metals, such as chromium and iron, are known for their metallic behavior. They typically have high electrical and thermal conductivity, malleability, and form positive ions.
On the other hand, in the compound CrF6, the chromium atom is bonded with fluorine (F) atoms, which are nonmetals. Nonmetals tend to have lower electrical and thermal conductivity, are often brittle, and form negative ions.
Since CrF6 contains chromium bonded with nonmetals, it exhibits greater nonmetallic behavior compared to CrFe2. Thus, the compound CrF6 would have more nonmetallic properties than CrFe2.
In which compound does Cr exhibit greater non metallic behavior, CrFe2 or CrF6? Explain?
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Which oxide, CrO3 or CrO, is more basic in water? Why
In water, the basicity of an oxide is determined by its ability to donate hydroxide ions (OH-) to the solution. Generally, oxides of metals tend to be basic, while oxides of nonmetals tend to be acidic.
In the case of CrO3 (chromium trioxide), it is an acidic oxide because it is composed of a nonmetal, oxygen, bonded with chromium, a transition metal. When CrO3 dissolves in water, it can react with water molecules to form an acid, resulting in the formation of hydronium ions (H3O+).
On the other hand, CrO (chromium(II) oxide) is a basic oxide because it is composed of a metal, chromium, bonded with oxygen. When CrO dissolves in water, it can react with water molecules to form hydroxide ions (OH-), resulting in the solution becoming basic.
Therefore, CrO (chromium(II) oxide) is more basic in water compared to CrO3 (chromium trioxide) since CrO can donate hydroxide ions, while CrO3 can donate hydronium ions, making it acidic.
In the case of CrO3 (chromium trioxide), it is an acidic oxide because it is composed of a nonmetal, oxygen, bonded with chromium, a transition metal. When CrO3 dissolves in water, it can react with water molecules to form an acid, resulting in the formation of hydronium ions (H3O+).
On the other hand, CrO (chromium(II) oxide) is a basic oxide because it is composed of a metal, chromium, bonded with oxygen. When CrO dissolves in water, it can react with water molecules to form hydroxide ions (OH-), resulting in the solution becoming basic.
Therefore, CrO (chromium(II) oxide) is more basic in water compared to CrO3 (chromium trioxide) since CrO can donate hydroxide ions, while CrO3 can donate hydronium ions, making it acidic.
1 answer