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Question

What are polar protic and polar apratim solvents?

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Solution

POLAR SOLVENT:

The solvent having non-zero net dipole moment is called a polar solvent.

The dipole moment arises due to presence of partial charges when two elements with different electronegativity bonded together covalently.

PROTIC SOLVENT :

Any solvent that contains labile H+ is called a protic solvent. Generally, a hydroxyl group or a amine group is present.

These solvents readily donates protons to reagents.

Now, you can easily say what is a polar protic solvent.

A polar solvent having capability of releasing a H+ ion is called a polar protic solvent.

Example - water, acetic acid , methanol etc.

N.b. - Every protic solvent is a polar solvent but every polar solvent is not a protic solvent.

A polar aprotic solvent is a name given to any solvent made of polar molecules that do not contain labile H+ ions, i.e., do not contain acidic H. This classification is very relative and mostly useful when discussing reaction mechanisms, and not commonly used anywhere else.

Examples: Dichloromethane (DCM), tetrahydrofuran (THF), dimethylsulfoxide (DMSO), and acetone.


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