Which of the following are Lewis bases? I. BCl₃ II. H- III. H₂O IV. NH₃ V. AlCl₃ A) II), III) and IV) B) I), II), and III) C) III), IV) and V) D) I), II), and V) E) I), II), and IV)

Question

Quizplus · Accepted Answer

A Lewis base is a species that can donate an electron pair to form a covalent bond. Based on this definition, the Lewis bases in the given options are: II. H- (can donate an electron pair from the lone pair on the hydrogen atom) III. H₂O (can donate an electron pair from the lone pair on the sulfur atom) IV. NH₃ (can donate an electron pair from the lone pair on the nitrogen atom) Therefore, the correct answer is A) II), III), and IV). Option B) is incorrect because BCl₃ cannot donate an electron pair. Option C) is incorrect because AlCl₃ is not a species that can donate an electron pair. Option D) is incorrect because I) cannot donate an electron pair.

Which of the Following Are Lewis Bases