CBSE Class 11-science Answered
basic order
Asked by | 21 Sep, 2012, 05:32: PM
Expert Answer
Pyrrole is a very weak base with a pKa of about -1 to -2.
pKa
Pyrazole 14.0
Imidazole 14.5
Thiazole 2.5
Isoxazole -3.0
pyrrole -1 to -2
We know smaller Pka value means Stronger acidity or weak base and vice versa. So, imidazole and pyrazole are stronger bases.
Answered by | 08 Dec, 2012, 09:08: AM
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