Compound & Mixture

Compound & Mixture

 Compound

The Substance which is formed by the chemical combination of two or more atom in fixed proportion is called compound.

Examples: C₁₂O₁₁H_22, CO₂ etc.

Explanation:The Compound is pure form of matter.The ratio of an element in a compound is always fixed. The properties of compound is always different from the element forming it. E.g. Sugar (C₁₂O₁₁H₂₂) is made of tasteless element but sugar is sweet. As compound is pure substance therefore showing fixed boiling and melting point and cannot back easily to its constituent element.

Types of Compound

There are two types of compounds and these are

Covalent Compound: The Compound which is formed by the chemical combination of atoms is called covalent compound.

E.g. H₂O, CH₄, CO₂ etc.

Ionic Compound: The Compound which is formed by the chemical combination of ions is called ionic compound.

E.g. Na₂CO₃, Nacl and KCl etc.

Mixture

The substance which is formed by the physical combination of two or more atom not in fixed proportion.

Examples: rocks and stones, flower and soil etc.

Explanation:It is impure substance and can easily back to its original elements. It is not showing fixed boiling and melting point. It has not fixed ratio and proportion. It properties is same as its original elements.

Types of Mixture

There are two types of mixture and these two types of mixture are

Homogeneous Mixture: A mixture in which all the particles have similar look is called homogeneous.

Examples: Air and aqueous solution etc.

Heterogeneous Mixture: A mixture in which all the particles have different look is called heterogeneous mixture.

Examples: Rock and soil etc.

Compound and Mixture Difference 

The Difference b/w them is as follow

Compound	Mixture
Compound is pure substance	Mixture is impure substance
It is formed by chemical combination of atoms	It is formed by Physical combination of atoms.
The properties of compound is different from the element forming it.	The properties of mixture are same as it constituent element.
It cannot easily back to its original elements.	It can easily back to its original elements.
The ratio or proportion of element in a compound is always fixed.	The ratio or proportion of element in a compound is not fixed.
As it is pure substance therefore showing fixed boiling and melting point	As it is impure substance therefore mixture do not show fixed boiling and melting point
It is formed in fixed ratio	It is not formed in fixed ratio.

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