MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryIonic equilibriumTheory of Acids and Bases

The conjugate base of NH2 – is

A.NH3

B.NH✓ Correct

C.NH4

D.N3

Explanation

Conjugate acid-base pairs differ by a single proton. The conjugate base of 2 NH will have one less proton than 2 NHwhich means 2 NHis acting as the acid (proton donor). 2 2 NH NH H ->

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